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Exam
Olympiad workbook
Subject
NSEC
Chapter
Thermodynamics (C)

Olympiad workbook · NSEC · Thermodynamics (C)

Three samples of 100 g of water (samples I, II and III), initially...

Three samples of 100 g of water (samples I, II and III), initially kept at 1 atm pressure and 298 K were given the following treatments. Sample I was heated to 320 K and cooled to 298 K Sample II was heated to 300 K , cooled to 273 K and heated to 298 K Sample III was heated to 373 K and cooled to 298 K At the end of these processes, the internal energy of

Options

  1. AIII is the highest
  2. BII is the highest
  3. CI and III are the same; II is lower than that of I and III
  4. DI, II and III are the same

Correct answer

D. I, II and III are the same

Step-by-step solution

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