Name the process which is associated with dissipated energy process and reduce the efficiency.

In a thermodynamic process of uncontrolled change satisfying the equation $Q=W=0$,where $Q$ is heat supplied and $W$ is work done,the process is:

If a cylinder containing a gas at high pressure explodes,the gas undergoes

$A$ container with insulating walls is divided into two equal parts by a partition fitted with a valve. One part is filled with an ideal gas at a pressure $P$ and temperature $T$,whereas the other part is completely evacuated. If the valve is suddenly opened,the pressure and temperature of the gas will be

Write a short note on reversible and irreversible processes.

Explain the quasi-static process.