First slide

Different type of processes

Question

An ideal gas is expanded so that amount of work done by it is equal to the decrease in internal energy. The gas undergoes the process TV^2/5 = constant the adiabatic compressibility of gas when pressure is P, is:

Moderate

A

7/5P
B

5/7P
C

2P/5
D

7P/5

Solution

$T V^{2 / 5} = cons$
$P V^{7 / 5} = cons$
$γ = 7 / 5$
$C = \frac{1}{B} = \frac{1}{γ_{P}} = \frac{1}{\frac{7}{5} P} = \frac{5}{7 P}$

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