Two cylinders A and B of equal capacity are connected to each other via a stop cock. A contains an ideal gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stop cock is suddenly opened. The process is:
Option: 1 isothermal
Option: 2 adiabatic
Option: 3 isochoric
Option: 4 isobaric
Since the process is very fast and instantaneous or suddenly so there is no time to do evacuation is almost negligible. SO there is no time to heat transfer, so no heat transfer occurs. So, this process is Adiabatic process