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Question: An ideal gas whose adiabatic exponent is gis expanded so that the amount of heat transferred to the ...

An ideal gas whose adiabatic exponent is gis expanded so that the amount of heat transferred to the gas is equal to the decrease of its internal energy. Molar heat capacity of the gas for this process is –

A

R1−γ\frac { \mathrm { R } } { 1 - \gamma }

B

Rγ−1\frac { \mathrm { R } } { \gamma - 1 }

C

R

D

R/2

Answer

R1−γ\frac { \mathrm { R } } { 1 - \gamma }

Explanation

Solution

dQ = – dU

nCdT = – nCVdT

C = – CV = – Rγ−1\frac { \mathrm { R } } { \gamma - 1 }