Thermodynamics - Result Question 21

22. One mole of an ideal gas goes from an initial state $A$ to final state $B$ via two processes : It first undergoes isothermal expansion from volume $V$ to $3 V$ and then its volume is reduced from $3 V$ to $V$ at constant pressure. The correct $P-V$ diagram representing the two processes is :

[2012]

(a)

(b)

(c)

(d)

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Answer:

Correct Answer: 22. (d)

Solution:

  1. (d) 1 st process is isothermal expansion which is only correct shown in option (d)

2 nd process is isobaric compression which is correctly shown in option (d)