Carbon dioxide Definition and 80 Threads

I've been searching the posts here and I think this question may be a little below most of you. I've cobbled together a homemade biogas generator and I'm wanting to improve the quality of the biogas by removing some of the CO2 (or all of it if I can) which will leave me with a higher calorific...

Homework Statement Let’s say the % concentrations of CaCO3 (table 5) you obtain from trial #1 and #2 are consistent, while the concentration obtained from trial #3 is significantly higher. Demonstrate, how and where, a wet flask could be involved to explain such a result. Explain in great...

Is there anyway to find out or approximate how much carbon dioxide a person produces per day, how much oxygen does a plant produce per day. And do different species of plants produce different amounts of oxygen?

Homework Statement Carbon dioxide partial pressure: a. increases in the blood as it travels from the systemic venules to the inferior vena cava b. is greater in the blood in the systemic capillary beds than in the alveoli of the lungs. The Attempt at a Solution The answer is...

Homework Statement If carbon dioxide is collected at 104.3 kPa and 29.6 oC, how many grams are collected? Use the gas constant of 0.08206 L. atm/mol . K. 1. Liters at STP. 2. Grams at new temperature and pressure. Homework Equations PV=nRT The Attempt at a Solution I really don't...

1. Burning butane (C4H10) produces gaseous carbon dioxide and water. The enthalpy of combustion of butane is -2650 kJ/mole. Determine how much water you can heat from room temperature (22 Degrees) to boiling with 1 kg of butane. Therefore: 13O2 + 2C4H10 ---Heat---> 8Co2 (g) + 10H2O(l)...

atmosphere, carbon dioxide and water vapour help?? (c) One cubic metre (1 m3) of atmosphere at sea level contains 3.80 × 10(power of)2 ppm of CO2 and 5.00 × 10(power of)3 ppm of water vapour. If there is a total of 2.6 × 10(power of)25 molecules in 1 m3 of air, calculate how many...

Hello, In my old papers, I could find a nice P-T diagram for Carbon Dioxide. I am interrested in liquid-gas equilibrium data, specially enthalpy and internal enery. Unfortunately, the diagram doesn't fit very well my current purpose. Moreover, I would like to make more use of my computer...

Hi I believe when you add carbon dioxide to water it will undergo hydrolysis to form carbonic acid CO2 + H20 <=>H2CO3 But i believe the CO2 is only weakly soluble so what happens to the rest of the CO2 that doesn't undergo hydrolysis? Does it exist as a gas in the water? thanks

A Standord Solar Research Post about a new Solar Membrane Panel, flexible for a wide variety of uses, (clothing rechargers anyone?), offered that the panel design includes deposition of Carbon atoms extracted from Methane. My concept went to extracting Carbon Atoms from Carbon Dioxide and...

Evolution of Carbon dioxide from Sodium bicarbonate and potassium hydroxide??! Hi!:smile: Here’s a question my teacher asked me to solve about evolution of carbon dioxide, We know that carbon dioxide is obtained by the action pf dilute acids on any metallic carbonate or bicarbonate e.g...

How much carbon dioxide has Eyjafjallajokull pumped into the atmosphere during the present eruption, compared to the amount not pumped in by aircraft during the recent "no fly" period in Europe?

Homework Statement Consider the CO2 molecule as a system made of a central mass m_2 connected by equal springs of spring constant k to two masses m_1 and m_3 a) set up and solve the equations for the two normal modes in which the masses oscillate along the line joining their centers (the...

I've been wondering recently about the air quality in cities. Suppose all cars/transport methods were to go electric or clean (electric cars etc...) how much would air quality improve by? In other words what % of the nitrous oxide and carbon dioxide emissions are mobile sources responsible for...

Hi All Hope this is the right forum, I am looking for an applied approach! I am interested in modelling the behaviour of CO2 powered rocket cars. These small models are powered by releasing pressurised carbon dioxide from a “sparklet” cylinder. The model cars race along 24 metre long...

http://airs.jpl.nasa.gov/AIRS_CO2_Data/AIRS_and_CO2/" I'm not sure about the long term analysis will work out, but it looks to me like the Atmospheric Infrared Sounder (AIRS) instrument is providing fundamental data about how our climate works.

Homework Statement In normal breathing conditions approximatly 5% of each exhaled breath is carbon dioxide. Given this informartion and neglecting any difference in water-vapor content estimate the typical difference in mass between an inhaled breath and an exhaled breath. assume one lungs...

http://www.ucar.edu/news/releases/2009/arctic2k.jsp The associated albedo flip will amplify the warming.

In the reaction of carbon dioxide and water to form carbonic acid, does water act as a lewis base because it donates a pair of electrons to carbon dioxide or does carbon dioxide act as a Bronsted-Lowry base because it accepts a proton from water? Thanks.

Homework Statement 6CO2 + 6 H2O → C6H12O6 + 6 O2 Now suppose the above reaction is allowed to proceed in both directions, and has reached equilibrium. How would increasing the concentration of oxygen change the concentrations of carbon dioxide and sugar? Homework Equations The Attempt at a...

Homework Statement In a sample of one litre of carbon dioxide at STP an average of 5 disintegrations C -> N + e + v are observed per minute. Calculate the atomic fraction of C present if the mean lifetime of this nucleus is 8267 years. Homework Equations \tau = \omega-1 = 8267...

Six days ago, the Dutch government added a flight fee at Schiphol, the Amsterdam airport, to be used to lower Earth’s atmospheric carbon dioxide (CO2) levels. The Netherlands is one of the four countries that tax carbon put into air in response to advice from the UN-sponsored Intergovernmental...

I hear many who believe that AGW is caused primarily by CO2 emissions in the atmosphere. I also hear from others that water vapor covers the same wave length in absorbtion. With more than 90% of the greenhouse gases being water vapor, what is the basis for the case concerning the influence of CO2.

In the 18th century methane was made from carbon dioxide (from the air) and hydrogen (from water) and used as the fuel for the lights of the "Gaslight" era. Seems to me, that if we could take carbon dioxide out of the atmosphere, add hydrogen and obtain methane, a very clean burning fuel, we...

Carbon dioxide output?? How would you go about calculating the carbon dioxide output per unit mass and volume for combustion products, i have already calculated the energy outputs per unit mass and volume. Many thanks.

Hi. I am trying to find information with no luck on google. I am hoping someone here can help point me to any articles or books that talk about how carbon dioxide is taken as a waste residue from an industrial process and purified, and turned into liquid carbon dioxide. But the focus is on how...

Greenhouse Gas Effect and Carbon Dioxide I have been having some difficulty with this, so perhaps someone could please sort out any mistakes, and let me know. Consider a vertical column of the Earth’s atmosphere based on a square of area 1 m^2. This air column has a mass of 1.01×10^4...

Hello. I need a help again for my differential equations class. The problem is as follows: The air in a room whose volume is 10,000 cu ft tests 0.15% carbon dioxide. Starting at t=0, outside air testing 0.05% carbon dioxide is admitted at the rate of 5000 cu ft/min. (a) What is the...

Hey all Why does Silicon Dioxide have a Giant molecular structure, while Carbon dioxide is made of simple molecules? They both have 4 electrons on their valence shells, so why wouldn't Silicon Dioxide be a simple linear molecule? (gaseous).

http://news.nationalgeographic.com/news/2004/07/0715_040715_oceancarbon.html