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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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Knowledge Check

  • Shown below are the black body radiation curves at temperature T_(1) and T_(2) (T_(2) gt T_(1)) . Which of the following plots is correct?

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  • In following isothermal graphs A, B and C at temperatures T_(1), T_(2) and T_(3) , the correct order of temperatures will be :

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    D
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  • In an adiabatic expansion of a gas initial and final temperatures are T_(1) and T_(2) respectively, then the change in internal energy of the gas is

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