Question

Two cylinders $A$ and $B$ of equal capacity are connected to each other via a stop clock. A contains an ideal gas at standard temperature and pressure. $B$ is completely evacuated. The entire system is thermally insulated. The stop clock is suddenly opened. The process is:

• A. isothermal
• B. adiabatic
• C. isochoric
• D. isobaric

Answer 1

Answer: (B)

adiabatic

Answer 2

The entire system is completely insulated and the free expansion of the gas will take place, the temperature of the gas will remain constant. So the process will be adiabatic.