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 $3V$ and then its volume is reduced from $3V$ to $V$ at constant pressure. The correct $P$-$V$ diagram representing the two processes is

Question

Dr. Abubacker · Accepted Answer

(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)

Q. 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 $3V$ and then its volume is reduced from $3V$ to $V$ at constant pressure. The correct $P$-$V$ diagram representing the two processes is

Explanation

Reviewed by Dr. Abubacker

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