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10 J of heat and 5 J of work is supplied to a system and 20 J of heat is taken out, then the system is which of the following?(a) Steady state(b) Unsteady state(c) Closed(d) None of the mentioned |
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Answer» The correct answer is (b) Unsteady state The best explanation: ∆E = 10 + 5 – 20 = – 5 J which is not equal to zero, so the system is unsteady state system. |
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