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NEET UG CHEMISTRY MCQ: THERMODYNAMICS
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A closed flask contains water in all its three states, solids, liquid and vapour at 0℃. In this situation the average KE of the water molecule will be:
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Correct option: D
Same in all the three states
Option D (Same in all the three states) is correct because the average KE of water molecules depends only on temperature, which is constant at 0°C.
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For which of the process, ∆S is negative?
The work done by a weightless piston in causing an expansion ∆V (at constant temperature), when the opposing pressure, P is variable, is given by:
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Reason :- During phase transition work done is always negative. For the reaction, at . Hence, is