Given two examples of reversible processes. Discuss their reversibility.

Answer

1. Meting of a solid and vaporisation of a liquid are reversible processes. On reversing the conditions under which these processes occur, the liquid can be converted black into solid and vapour into liquid.
2. All isothermal and adiabatic processes, in which no loss of heat occurs due to conduction, convection or radiation can be retraced reversing the boundary conditions and hence these are reversibly processes.