An ideal gas is expanded so that amount of heat given is equal to the decrease in internal energy. The gas undergoes the process TV 1/5 = constant. The adiabatic compressibility of gas when pressure is P, is –
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
dQ = – dU
C = – C V = 
= 
+ 
T 5 V = const.
V = 
= – 5 
PV = nRT
P/n = RT/V
+ 
× 
= 
= 
⇒ γ – 1 = 2/5
γ = 7/5
adiabatic compressibility
β = 
= 
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