Heat and Thermal ExpansionHard

Question

Given T - P curve for three processes. If initial and final pressure are same for all processes than work done in in  process 1, 2 and 3 is W1,W2 & W3 respectively. Correct order is 

Options

A.W1 < W2 > W3
B.W1 > W2 > W3
C.W1 < W2 < W3
D.W1 = W2 = W3

Solution

Here T ∝ Pn where for : graph -1, n > 1 ⇒ W > 0 ;    graph - 2 n = 1 ⇒ W = 0;    graph         3, n < 1 ⇒ W < 0

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