Kinetic theory gases Definition and 12 Threads
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Equating two formulas for root-mean-square velocity
(a) My question : Are all the formulas correct? If so I can write ##v_{rms}## in form (2) and compare that result with the other velocities to get the answer (rms > average > most probable)- JC2000
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- Formulas Kinetic theory gases Thermodynamics Velocity
- Replies: 2
- Forum: Introductory Physics Homework Help
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How Does Doubling the Temperature Affect the Mean Free Path in a Gas?
Say Temperature of a gas doubles, I do not understand how the average distance between particles (mean free path) is unaffected if they are traveling √2 times as fast in a fixed volume V. Root 2 as a factor of increase because T*2 --> KE*2 --> V*2 --> Vrms*√2 Is it because relative to one...- Sarah0001
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- Kinetic theory gases Mean Mean free path Path
- Replies: 1
- Forum: Introductory Physics Homework Help
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Pressure exerted by a gas (derivation using the kinetic theory of gases)
In the derivation of finding pressure exerted by a gas using kinetic theory of gases I am not understanding why the time between two collisions is taken as the time for rate of change of momentum when a particle bounces back from the wall. please help me -
Effusing gas onto the interior of an evacuated sphere
Homework Statement A gas effuses into a vacuum though a small hole of area A. Show that if the particles effused into an evacuated sphere and the particles condensed where they collided that there would be a uniform coating. (7.6 of Blundell and Blundell) Homework Equations Angular...- Toby_phys
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- Gas Interior Kinetic theory gases Sphere Statisical physics
- Replies: 1
- Forum: Introductory Physics Homework Help
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Pressure should decrease in zero gravity?
Pressure can exist in a container of gas even if there is no gravity. From kinetic theory of gases it is assumed that pressure exists due to momentum transfer between molecules and the wall. Suppose I have a closed container on Earth at sea level filled with air. Now I carried it to zero gravity...- Ravi Singh choudhary
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- decrease Gases Gravitation Gravity Kinetic theory gases Pressure Zero
- Replies: 7
- Forum: Mechanics
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How to Calculate Work Done by a Gas in Thermodynamics?
Homework Statement Please see the attached image Homework Equations pv=nRTThe Attempt at a Solution i don't know how to calculate the work done by the gas in the question and i calculated the change in internal energy.- vijayramakrishnan
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- Gas laws Heat and thermodynamics Kinetic theory gases Thermodynamics
- Replies: 9
- Forum: Introductory Physics Homework Help
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Mean free path and speed as a function of pressure and temp
Homework Statement I know that at 18,000 ft. above mean sea level, the atm. pressure ~half of what it is at seal level (760 Torr). The temperature also decreases by 70C. a. How would this change the speed distribution of the air molecules quanitatively? b.How would it change the mean free...- jhartc90
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- Function Kinetic theory gases Mean Mean free path Path Pressure Speed
- Replies: 1
- Forum: Advanced Physics Homework Help
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Relationship between pressure and thermal conductivity
Homework Statement I would like to derive an equation that relates the thermal conductivity to the pressure using the kinetic theory of gases. However, I assumed that thermal conductivity was independent of pressure. Homework Equations I know that P = 2N/3V (1/2mv^2) Also: I believe that...- jhartc90
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- Conductivity Kinetic theory gases Pressure Relationship Thermal Thermal conductivity
- Replies: 2
- Forum: Advanced Physics Homework Help
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What is the molecular diameter of hydrogen using Van der Waals coefficients?
Homework Statement Calculate the molecular diameter of hydrogen, assuming the spherical shape on the basis of van der Waals coefficients. Van der Waals Coefficients for hydrogen a = 0.244 atm L2.mol-2 b*103 = 26.6 L.mol-1 Homework...- mikeclinton
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- Diameter Gas laws Kinetic theory gases Van der waals Van der waals equation
- Replies: 2
- Forum: Advanced Physics Homework Help
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Finding average angle in kinetic theory of gases
Homework Statement "Show that particles hitting a plane boundary have traveled a distance 2λ/3 perpendicular to the plane since their last collision, on average."Homework Equations (Root mean path squared) <x> = 2^(.5)λ λ = ( 2^(.5) * n * sigma )^(-1) ANSWER: The Attempt at a Solution...- Kevin Willis
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- Angle Average Gases Kinetic Kinetic theory Kinetic theory gases Theory
- Replies: 6
- Forum: Advanced Physics Homework Help
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Knudson Effusion between two gasses
Homework Statement Consider two chambers of equal volume separated by an insulating wall and containing an ideal gas, maintained at temperatures T1 = 225K and T2 = 400K. Initially the two chambers are connected by a long tube whose diameter is much larger than the mean free path in either...- Robsta
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- Effusion Kinetic theory Kinetic theory gases Statistical mechanics
- Replies: 4
- Forum: Introductory Physics Homework Help
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Advanced Physics Exam Question ( Can't Answer It )
I passed my exam but I blanked out at this question and have no idea how to answer it. I think it want me to prove the formula with its corresponding SI units? Question: In the kinetic theory of gases, the absolute temperature of a gas given by T= mc^2/3k where m refers to the mass of gas...- BoanviaFx
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- advanced Advanced physics Exam Kinetic theory gases Physics
- Replies: 1
- Forum: Advanced Physics Homework Help