Question

A fixed mass of a gas is first heated isobarically to double the volume and then cooled isochorically
A. 2
B. `1//2`
C. 1n 2
D. 1n 3

Answer 1

Correct Answer - C
c. `Delta W_(ABC) = 2 P (2V - V) = 2PV`
`Delta W_(ADC) = nRT 1n (2V//V)`
`= 2 PV 1n 2`
Therefore, the required factor will be
`(2PV 1n 2)/(2 PV) = 1n 2`