NTA Abhyas JEE Main2020PhysicsThermodynamicsPractice
The molar heat capacity of a monoatomic ideal gas undergoing the process P V 1 / 2 = constant is
Options
- A15 2 R
- B23 2 R
- C7 2 R
- DZero
Correct answer
C. 7 2 R
Step-by-step solution
For a polytropic process, specific heat of an ideal gas is given by, c = R γ - 1 + R 1 - n n = 1 2 , f o r t h i s p o l y t r o p i c p r o c e s s c = R 5 3 - 1 + 2 R = 3 R 2 + 2 R = 7 R 2