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_s and that along the dotted line path is W_d , then the int

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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_s and that along the dotted line path is W_d , then the integer closest to the ratio W_d W_s is

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Correct answer: 2

Solid line represents reversible isothermal process. So, work W_s=-4 0.5 ( 5.5 0.5 )=-2 11 ~L - atm Dotted line represents irreversible process So, work W_d=- 4 1.5+1 1+ 2 3 2.5 =- 6+1+ 5 3 L - atm =- 26 3 ~L - atm So W_d W_s = 26 3 2 11 2 Energetics Conceptual III

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_s and that along the dotted line path is W_d , then the integer closest to the ratio W_d W_s is

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