1.

For an adiabatic expansion of a perfect gas, the value of \[\frac{\Delta P}{P}\] is equal to [CPMT 1983; MP PMT 1990]

A. \[-\sqrt{\gamma }\frac{\Delta V}{V}\] 
B. \[-\frac{\Delta V}{V}\]
C. 30°C 
D. \[-{{\gamma }^{2}}\frac{\Delta V}{V}\]
Answer» D. \[-{{\gamma }^{2}}\frac{\Delta V}{V}\]


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