Gas in a container is at a pressure of 1.7 atm and a volume of 2.0 m 3 . (a) Wha

Question

Gas in a container is at a pressure of 1.7 atm and a volume of 2.0 m3. (a) What is the work done on the gasif it expands at constant pressure to twice its initial volume?
1 J
(b) What is the work done on the gas if it is compressedat constant pressure to one-quarter its initial volume?
2 J (a) What is the work done on the gasif it expands at constant pressure to twice its initial volume?
1 J
(b) What is the work done on the gas if it is compressedat constant pressure to one-quarter its initial volume?
2 J

Explanation / Answer

pressure = 1.5 atm =   151950 Pascal . work done on gas = - p V = -151950 * (4.0 - 2.0) =    -303900Joules . work = - p V = - 151950 * (0.5 - 2.0) =    -227925 Joules

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