Carbon dioxide, which is recognized as the major contributor to global warming a

Question

Carbon dioxide, which is recognized as the major contributor to global warming as a 'greenhouse gas." is formed when fossil fuels are combusted, as in electrical power plants fueled by coal. oil. or natural gas. One potential way to reduce the amount of CO_2 added to the atmosphere is to store it as a compressed gas in underground formations. Consider a 1003-megawatt coal-fired power plant that produces about 4 x10^6 tons of CO_2 per year. Assuming ideal gas behavior. 1.00 atm. and 27 degreeC. calculate the volume of CO_2 produced by this power plant. If the CO_2 is stored underground as a liquid at 10 degreeC and 120 atm and a density of 1.2 g/cm^3. what volume does it possess? If it is stored underground as a gas at 38 degreeC and 90 atm. what volume does it occupy?

Explanation / Answer

Part A.

Using ideal gas equation, V = nRT/P

with,

n = moles

R = gas constant

T = temperature

P = pressure

we get,

V = 3.63 x 10^12 x 0.08206 x 300/44.01 x 1 = 2.03 x 10^12 L is the volume

Part B. Volume = mass/density

= 3.63 x 10^12/1.2 = 3.025 x 10^12 cm^3 will be the volume at 10 oC and 120 atm

Part C. Using, V = nRT/V

Feed values calculated in Part A and given in Part C,

V = 3.63 x 10^12 x 0.08206 x 309/44.01 x 90 = 2.323 x 10^10 L is the volume

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