A fixed mass m of a gas is subjected to transformation of states from K to L to M to N and back to K as shown in the figure.

The succeeding operation that enable this transformation of state are

Options

A. Heating, cooling, heating, cooling
B. Cooling, heating, cooling, heating
C. Heating, cooling, cooling, heating
D. Cooling, heating, heating, cooling

Answer

C

Explanation

K `rarr` L implies V `uarr` at constant P Hence T `darr` (Heating)
`L rarr M implies P darr` at constant V Hence `T darr` (Cooling)
`MrarrNimpliesVdarr` at constant P Hence `T darr` (Cooling)
`NrarrK=Puarr` at constant V Hence `T uarr` (Heating)