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in Chemical thermodynamics by (64.7k points)

One mole of an ideal gas is taken from a to b along two paths denoted by the solid and the dashed lines as shown in the graph below. If the work done along the solid line path is W, and that along the dotted line path is Wd, then the integer closest to the ration Wd/Ws is 

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Work-done along dased path: 

|–W| = ∑P∆p V =4×1.5+1×1+ 2/3 ×2.5= 8.65 L atm

Work-done along solid path: –W = nRT In V2/V1

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