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 operations that enable this transformation of states are
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✓ Correct
- (D)Cooling, heating, heating, cooling
Answer: (C)
Solution
From the P-V diagram:
K → L: Isobaric expansion (P constant, V increases) → T increases → Heating
L → M: Isochoric process (V constant, P decreases) → T decreases → Cooling
M → N: Isobaric compression (P constant, V decreases) → T decreases → Cooling
N → K: Isochoric process (V constant, P increases) → T increases → Heating
Sequence: Heating, cooling, cooling, heating.
K → L: Isobaric expansion (P constant, V increases) → T increases → Heating
L → M: Isochoric process (V constant, P decreases) → T decreases → Cooling
M → N: Isobaric compression (P constant, V decreases) → T decreases → Cooling
N → K: Isochoric process (V constant, P increases) → T increases → Heating
Sequence: Heating, cooling, cooling, heating.
JEE Advanced · 2013 · 02 Jun 2013 · Paper 2 · Single correct option