Gas in a container is at a pressure of 1.8 atm and a volume of 7.0 m 3 . (a) Wha
ID: 1476503 • Letter: G
Question
Gas in a container is at a pressure of 1.8 atm and a volume of 7.0 m3. (a) What is the work done on the gas if it expands at constant pressure to twice its initial volume?J
(b) What is the work done on the gas if it is compressed at constant pressure to one-quarter of its initial volume?
J Gas in a container is at a pressure of 1.8 atm and a volume of 7.0 m3. (a) What is the work done on the gas if it expands at constant pressure to twice its initial volume?
J
(b) What is the work done on the gas if it is compressed at constant pressure to one-quarter of its initial volume?
J (a) What is the work done on the gas if it expands at constant pressure to twice its initial volume?
J
(b) What is the work done on the gas if it is compressed at constant pressure to one-quarter of its initial volume?
J
Explanation / Answer
work = -P*dV = -182385*10^5*(14-7) ( 1.8 atm = 182385 Pa, work done on the gas taken to be be negative )
=> work = -1276695 J OR -12.76*10^5 J
b) 182385*10^5*(7-7/4) = 957521.25 J OR 9.57*10^5 J
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