The magnitude of reversible work done by an ideal gas in four different processes: isothermal expansion, adiabatic expansion, constant pressure expansion, and free expansion are $W_i, W_a, W_p$, and $W_f$ respectively. Choose the right order of sequence for the magnitude of the work done. (Change in the volume is same for all the processes.)

• A

  $W_i \gt W_p \gt W_a \gt W_f$
• Correct answer
  B

  $W_p \gt W_i \gt W_a \gt W_f$
• C

  $W_i \gt W_p \gt W_f \gt W_a$
• D

  $W_p \gt W_a \gt W_i \gt W_f$

Hence, the correct answer is option: 'B'.