JEE Advanced 2020 Physics question
Consider one mole of helium gas enclosed in a container at initial pressure and volume . It expands isothermally to volume . After this, the gas expands adiabatically and its volume becomes . The work done by the gas during isothermal and adiabatic expansion processes are and , respectively. If the ratio , then is .
Answer: 1.78
Solution
Isothermal step: . After it, , , so . Adiabatic step for helium (): $ = = ( =
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account