Container Definition and 334 Threads

  1. T

    Conversion from grams/liter to valume of the container

    Conversion from grams/liter to volume of the container I have a problem that need your help. This is not my homework, it is a friend of my who needs to solve this for his project. Here is the description below: The product is in powder form (like baking soda). The label weight of the...
  2. Q

    Water valve for a cylindrical container

    I need help designing a mechanism for quickly releasing water through a tiny hole on one end of a thin cylindrical pole by a switch/button/etc on the other end. I have thought of one way to do this and drew an illustration, which is in the attachment. But I'm not sure if when the bar is covering...
  3. B

    Elephant Toothpaste Experiment in closed container used to compress air

    In case you have never heard of the elephant toothpaste experiment, take a look at this: http://www.using-hydrogen-peroxide.com/elephant-toothpaste.html" I was just wondering, if you put the chemicals together in an air tight container, would the air pressure increase?
  4. T

    What Role Does Science Play in the Effectiveness of Vacuumed Containers?

    Isn’t the act of a vacuum to exert all possible mass whilst maintaining the structure the vacuum resides in?
  5. H

    Rectangular container optimization

    Homework Statement A rectangular storage container with an open top is to have a volume of 10 m^3. The length of this base is twice the width. Material for the base costs $10 per square meter. Material for the sides costs $6 per square meter. Find the cost of materials for the cheapest such...
  6. A

    Boiling point of water in a closed container

    Hi all, for a closed container with water under pressure in it, let's say GAUGE PRESSURE of the container is 101 kPa, what will the boiling point of water in that vessel be? Will it be 100 deg C, or will it be 120 deg C because the ABSOLUTE PRESSURE of the water in that vessel is 202kPa...
  7. V

    How many molecules of monotonic and diatomic gas are in a container?

    1. You have a container of 3300 cm^3. Half of it is diatomic oxygen and half is monotonic helium. Pressure is 17 atm and temperature is 25 degrees C. How many molecules of each substance are in it? 2. PV = 2/3 N(1/2 mv^2) -> PV = 2/3 N (K) -> N = 1.5 PV/K K_monotonic = 3/2kT = 3/2...
  8. S

    Any Errors in My Differential Equation for a Leaking and Refilling Container?

    I have to set up a differential equation for a leaking cylindrical container that is being refilled at a constant rate. Its leaking from the bottom, refilled from the top, and starts empty. Wondered if someone could check if what i have done so far is right..? h=height of water A=cylinder...
  9. M

    How do you make an eraser launcher using pill container?

    I want to launch an eraser through the air and it should land inside a garbage can 10 meters away from the launch site and it will be laying at a 30 degree angle to the ground. i need to use a combustion chamber made out of a container (max 65 mL), i need to use fuel, a sparker , an eraser...
  10. A

    What happens to the pressure of a liquid extracted from a pressurised container?

    Hello all, Consider the following scenario: I have a pipe entirely filled with water flowing through it due to a pump at one end pressurising the fluid. Imagine that underwater, I trap some of the flowing water in a capsule, completely filling the capsule with water, and then closing the...
  11. C

    Fluids - A lost shipping container is found resting on the ocean floor

    Homework Statement A lost shipping container is found resting on the ocean floor and completely submerged. The container is 6.3 m long, 2.1 m wide, and 2.6 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface...
  12. J

    Calculating Force Exerted by Water on Container Bottom

    Homework Statement A container has a large cylindrical lower part with a long thin cylindrical neck. The lower part of the container holds 12.5 m3 of water and the surface area of the bottom of the container is 4.68 m2. The height of the lower part of the container is h1 = 3.30 m and the neck...
  13. A

    Heat Container: 20cm - Time Required

    how much time does it takes to heat a container or diameter 20 cms
  14. L

    Relating pressure and height in a container

    1. A container of uniform cross-sectional area A is filled with liquid of uniform density rho. Consider a thin horizontal layer of liquid (thickness dy) at a height y as measured from the bottom of the container. Let the pressure exerted upward on the bottom of the layer be p and the pressure...
  15. B

    Arcing or charge propogation within a container

    Hey guys, I guess I should mention first that I am not a student I had something in mind I would like to try but have very little experience with electrical components. I also do not have the best knowledge base in electrical theory. Im trying to find a somewhat practical way to cause a...
  16. Averagesupernova

    How Does Draining and Refilling Affect a Mixture's Composition?

    My dad and I were having a discussion about filling a container with a 2 part mixture (50/50), draining off X amount of it and then refilling it with only 1 part of the mixture. For example: - Suppose we have a container that holds 10 gallons. We fill it with 5 gallons of water and 5 gallons...
  17. S

    How to get water in air tight container w/ other specifics

    Let's say i have a sealed container with half water, half air, and i would like the air pressure to remain constant. how can i get a water hose to pour into this sealed air container without having the air escape up the hose? Note* There is water leaving my container at the same rate it...
  18. P

    How many grams of cold water necessary to lower temperature in container

    Homework Statement How many grams of 20 degree C water do I need to add to 100 grams of 80 degree C of water to get the final temperature down to 50 degrees C? Homework Equations I'm sure it's a pretty simple equation, but I don't know it. (I'm studying a lot of different things at once...
  19. K

    Heat and work in adiabatic container

    Homework Statement Electrical current is passed through a resistor immersed in a liquid in an adiabatic container. The temperature of the liquid is varied by 1 degree Celcius. The system consists solely of the liquid. Does heat or work flow across the boundary between the system and...
  20. T

    Why do plastic containers deform in hot temperatures?

    I have a plastic Gatorade type bottle that I reuse. Between uses, I fill it with hot water and shake, and then empty it. Once I empty it, if I put the lid on and wait, the bottle eventually deforms and sucks in on itself. Then when I remove the lid it returns to normal. Why does it deform? Is...
  21. S

    Heating water in a long container

    This is an oversimplification of a practical problem I am currently trying to design for. Suppose, we have a very long cylinder closed at both ends which contains water at a given pressure P1 and temperature T1. P1 and T1 are such that water is in a compressed state (subcooled). One end of...
  22. S

    Max bursting pressure within an aluminium container

    Hello, this is my first post, i hope somebody can help me. I have searched for the answer myself all over on the web and here, but I am stuck. Im trying to work out the maximum pressure (psi) that i can get into an aluminium cylinder that's 80mm wide and 250mm tall and 4mm thick ive found...
  23. S

    Container with two gas compartments separated by piston

    Homework Statement This is Reif, Fundamentals of Statistical Mechanics, problem 5.4 A cylindrical container 80 cm long is separated into two compartments by a thin piston, originally clamped in position 30 cm from the left end. The left compartment is filled with 1 mole of helium gas at a...
  24. P

    Volume of Container - Triple Integral

    Homework Statement A container has a vertical height of 1m, a circular base with radius 1m and a circular top with radius 2m. Use a triple integral and spherical coordinates to evaluate the volume of the container. 2. The attempt at a solution If we set up the problem so that the centre of...
  25. T

    Air pressure in a container then released

    Homework Statement The air temperature and pressure in a laboratory are 22°C and 1.3 atm. A 2.05 L container is open to the air. The container is then sealed and placed in a bath of boiling water. After reaching thermal equilibrium, the container is open. How many moles of air escape...
  26. B

    Hole in a container and its distance from the bottom

    Homework Statement A hole is punched at a height h in the side of a container of height h0 = 1.15 cm. The container is full of water, as shown in the figure below. If the water is to shoot as far as possible horizontally, how far from the bottom of the container should the hole be punched...
  27. G

    Help with STL container list for INformation Manager

    Help with STL container list for INformation Manager! I'm trying to create a info manager like rolodex. Rolodex.cpp List() function void Rolodex::List() { list<string>::iterator cIterator; for (cIterator = cardlist.begin(); cIterator != cardlist.end(); ++cIterator) {...
  28. S

    Hole Punched in the Side of Container

    Homework Statement A hole is punched in the side of an 20 cm tall container full of water. To maximize horizontal distance of the water, how far from the bottom of the container should the hole be punched? Homework Equations ?? \Deltay = v0t + .5at2 The Attempt at a Solution This...
  29. 5

    Solving Marble in Container Problem: Find Forces at A, B & C & Between Marbles

    Hi all. I am stuck at this question for quite some time. Not really sure on how to go about solving it. Please help! Thanks in advance. Two uniform 77.4-g marbles 2.23 cm in diameter are stacked as shown in the figure in a container that is 2.70 cm wide. a) Find the force that the...
  30. N

    Yellow fungus/mold on soil in container plant

    I have an orange tree growing in a pot, and lately the soil has been getting some yellow growth of some sort on it. I can't seem to find anything about it in any of my books. The plant doesn't appear to be adversely affected. Any ideas what it is? Is it a problem? Will it spread to my other...
  31. W

    Bernoulli's Principle: Does it affect a non-flowing fluid in a moving container?

    Does Bernoulli's Principle affect a non-flowing fluid in a moving container? As in, if I am in an air-sealed airplane at rest, and then the plane accelerates on the ground (but does not fly), does the gas pressure inside the plane change because the fluid (air inside the cabin) has a velocity...
  32. M

    Pressure of gases in a container

    Hello, my tutor told me the answer to this questions went beyond the scope of the course. We are taught that according to Le Chatelier principle, a system at equilibrium compensates a changement of pressure by shifting towards products or reactants and thus changing the number of molecules...
  33. T

    Thermo - mixing water in a container.

    A partition separates the two compartments of a vessel. The vessel is submerged in a constant temperature bath at 200C. Compartment A contains 2.00 kg of water at 200C, 50.00 bar and compartment B contains 0.983 kg of water at 200C, 1.00 bar. The partition is removed and the water in both...
  34. A

    Maintaining constant air pressure in leaky container

    How can I calculate the air-supply flow (q=cfm) needed to maintain, say, p=50 psi of pressure in a (quasi-rigid) cylinder with a Volume of V=30,000 cft, when this cylinder has an open gap (leak) 50 ft long (L=50 ft) and 1/8 inch wide (w=1/8 inch)? Is there a simple formula I can use to...
  35. A

    Ideal gas law, applied to non-rigid container

    I'm trying to determine the internal volume of a container using the ideal gas law principle. 1. A container of known volume is pressurized with air to some known value relative to ambient. 2. The container of unknown volume is vented to ambient. 3. Temperature is constant for all air...
  36. M

    How Is Total Pressure Calculated in an Evacuated Rigid Container at Equilibrium?

    Homework Statement At 258°C, Kp = 2.9 x 10^-3 atm3 for the following reaction. NH4OCONH2(s) <--> 2 NH3(g) + CO2(g) In an experiment carried out at 258°C, a certain amount of NH4OCONH2 is placed in an evacuated rigid container and allowed to come to equilibrium. Calculate the total...
  37. F

    Entropy and multiplicity of a gas when adding/removing wall in container

    Consider an isolated system of two ideal, identical gases in thermal equilibrium. Gas A is occupying a volume A, separated by a wall from volume B, where gas B resides. They are in thermal contact. The volumes are the same, so are the pressures and temperatures, and it follows that the number of...
  38. S

    Alkyl halides left in an open container what happens?

    Homework Statement A student left some alkyl halides (RCI and RBr) in an open container for several hours. What happened to the composition of the halide mixture during that time? Assume that some liquid remains in the container. Homework Equations From...
  39. L

    Freezing water in an unexpandable container?

    If you did had a container that was strong enough to resist the expansive forces generated as the water in it freezes, what would happen? (assuming the container is filled completely with water) Thanks for any answers in advance, and I hope this post is in the correct place, if not, then sorry!
  40. C

    Rate of radiation coming from inside a container

    Homework Statement A aluminum container has walls that are 23 mm thick. A radiation detector measures a rate of 542 Hz outside the container. The radiation source inside the container has a half-life of 2.4 years. What is the rate of radiation from the source inside the container...
  41. P

    Measuring and container math problem

    i hv a question...? plis help me! a vertical container with base area measuring 14 cm by 17 cm is being filled with identical pieces of candy, each with a volume of 50 mm^3 and mass of 0.02 gr. assume that the volume of the empty spaces between the candis is negligible. if the height of the...
  42. S

    Pressure at the bottom of a container

    Homework Statement In an open glass container, 0.10 m of oil (rho=850 kg/m^3) floats on top of 0.20 m of water (1000 kg/m^3). What is the pressure at the bottom of the glass?Homework Equations (rho)(h)(g)= pressure at a depth of hThe Attempt at a Solution The only thing I'm not sure of is...
  43. J

    Calculating Pressure Inside Airtight Container

    Homework Statement A Partially evacuated airtight container has a tight-fitting lid of surface area 77m^2 and negligible mass. If the force required to remove the lid is 480N and the atmospheric pressure is 1x10^5 Pa, what is the air pressure inside the container? Homework Equations...
  44. H

    What is the final volume of the container?

    Homework Statement A container has a 100 cm^2 piston with a mass of 10 kg that can slide up and down vertically without friction and is placed below a heater. Suppose the heater has 25 W of power and are turned on for 15 s. What is the final volume of the container? Initial Volume: 800 cm^{3}...
  45. clope023

    Volume of a liquid in a container

    Homework Statement A tall cylinder with a cross-sectional area 12.0cm is partially filled with mercury; the surface of the mercury is 6.00cm above the bottom of the cylinder. Water is slowly poured in on top of the mercury, and the two fluids don't mix. What volume of water must be added...
  46. J

    Explain why the average velocity of the gas molecules in a container is zero

    Hey there guys i am new here and not sure if this is in the right section, well here goes. Just doing some revision and realized I must have been asleep for the Kinetic theory lessons, i have now grasped some of the basics, but have come to this question and not usre how to answer it...
  47. O

    Will a Conic Container Shape Prevent Bouncing Up Due to Gas Pressure?

    Hi there, I am developing a really cool new product and it somehow relates to pressure's behavior. Since I do not have any Physics background I will appreciate if someone could help me out. The thing is that I attach a small container to certain area. This attachment actually seals the...
  48. T

    How do I calculate the volume of an irregular container using styrofoam beads?

    I'm trying to find the volume of a irregularly shaped container by using very small styrofoam beads. Things I know: Cylinder A filled with water @ 18 c - net weight - 1231.0 g. Cylinder A filled with beads - net weight - 22.0 g. My unknown volume container holds 1678.7 g of beads. How the...
  49. C

    Increase pressure in closed container

    an experiment^^ in a closed container, means tat it has a constant volume. when i increase the air pressure inside(without heating), the result is the temperature will increase. why? can i hav a theoretical explanation? thx for reading
  50. B

    What happens to the water level in the container?

    Homework Statement Answer both of the questions below using the following information: A lead weight is fastened on top of a large piece of Styrofoam that floats in a container of water. Because of the weight of the lead, the water line is flush with the top surface of the Styrofoam. If the...
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