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(Figure) Shows three isothermal curves a...

(Figure) Shows three isothermal curves at temp `T_(1), T_(2) and T_(3)`
`T_(3)gt T_(2)gt T_(1)`. A system changes its state by four paths a, b, c, and d, .Identify the path in which changes in internal energy of the system is maximum.

Text Solution

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The change in internal energy vaties directly as the difference in temperatures of the system. In the path (d), difference in temperatures involved is `(T_(3)-T_(1))`, which is maximum. Therefore, change in internal energy would be maximum when the system follows the path (d).
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