In the P - V diagram, I is the initial state and F is the final state. The gas goes from I to F by
(i) IAF, (ii) IBF and (iii) ICF.

The heat absorbed by the gas is

Options

A. The same in all three processes
B. The same in (i) and (ii)
C. Greater in (i) than in (ii) A B C
D. The same in (i) and (iii)

Answer

C

Explanation

`Delta Q=Delta U + Delta W`
Since, `Delta U` is same for all process
`Delta W_1` = +ve, `Delta W_2 = 0, Delta W_3` = -ve `:. Delta Q_1 gt Delta Q_2`