1)

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

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The succeeding operations that enable  this transformation of states are


A) heating , cooling , heating, cooling

B) cooling, heating, cooling , heating

C) heating, cooling, cooling , heating

D) cooling, heating, heating, cooling

Answer:

Option C

Explanation:

 Plan By  Boyle's law at constant temperature   $p\propto\frac{1}{V}$

 By Charles's law at constant pressure

 $V\propto T$

 Process taking place at

 Constant temperature → isothermal

Constant preesure →  isobaric

Constant Volume →  Isochoric

Constant heat →  adiabatic

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