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The liquid water which is having one mole, heated from 10C to 90C by the two different processes. In the first, the water is first brought into contact with a hot plate maintained at 50C until thermal equilibrium is reached, followed by the exposure to a 90C hot plate. In second process, 90C hot plate is used throughout the process. Determine q for both processes. Discuss which is more reversible and why?

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