InterviewSolution
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InterviewSolution
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Which of the process described below are irrevesible?A. The increase in temperature of an iron rod by hammering it.B. A gas in small container at a temperature `T_(1)` is brought in contact with a big reservoir at a higher temperature of the gas.C. A quasi- static isothermal expansion of an ideal gas in cyclinder fitted with a frictionless piston.D. An ideal gas is enclosed in a piston cyclinder arrangement with adiabatic walls. A weight `W` is added to the piston, resulting in compression of gas. |
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Answer» Correct Answer - A::B::D (a) The increase in temperature of an iron rod by hammering it is the irrevesible process. (b) A gas in a small container at a temperature `T_(1)` is brought in contact with a big reservoir at a higher temperature `T_(2)` which increases the temperature of the gas is also an irreversible process. (d) An ideal gas is enclosed in a piston cyclinder arrangement with adiabatic walls. A weight `W` is added to piston resulting in compression of the gas is also an irreversible process. In all the cases above, the original state of the system cannot be regained. |
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