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Question: Answered & Verified by Expert
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
ChemistryThermodynamics (C)NEET
Options:
  • A Heating, cooling, heating, cooling
  • B Cooling, heating cooling, heating
  • C Heating, cooling, cooling, heating
  • D Cooling, heating, heating, cooling
Solution:
2921 Upvotes Verified Answer
The correct answer is: Heating, cooling, cooling, heating
From K to M as Pressure is constant, so temperature is increased to increase volume that is heating. (Isobaric expansion)
From L to M as Volume is constant, so temperature is decreased to decrease pressure that is cooling. (Isochoric)
From M to N as Pressure is constant so temperature is decreased to decrease volume that is cooling. (Isobaric compression)
From N to K as Volume is constant so temperature is increased to increase pressure that is heating. (Isochoric)
At constant pressure VT
At constant volume PT

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