Question

An ideal gas with adiabatic exponent (y = 1.5) undergoes a process in which work done by the gas is same as increase in internal energy of the gas. The molar heat capacity of gas for the process is:

• A. C = 4R
• B. C = 0
• C. C = 2R
• D. C = R

Answer 1

The correct option is C C = 2R

The molar heat capacity of gas for the process is:

$C=\frac{R}{\gamma -1}$

$C=\frac{R}{1.5-1}$

$C=\frac{R}{0.5}$

$C=\frac{R}{\frac{1}{2}}$

$C=2R$