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This is a question from RC Mukerjee, thermodynamics chapter.I couldn't understand the given solution?

This is a question from RC Mukerjee, thermodynamics chapter.I couldn't understand the given solution?

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Grade:12th pass

2 Answers

Eshan
askIITians Faculty 2095 Points
5 years ago
Dear student,

Since the temperature of the water remains same during vaporization, the change in internal energy is zero. The work done in the process becomes the heat energy given equal tonL
Shivangi Khatter
askIITians Faculty 468 Points
5 years ago
work done = 2 * 373 J
= 746 J
change in internal energy = 9720 + 746 kj/mol

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