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Olympiad workbook
Exam
Olympiad workbook
Subject
NSEC
Chapter
Thermodynamics (C)

Olympiad workbook · NSEC · Thermodynamics (C)

Following is the P vs V plot of a cyclic process 1 arrow 2,2 arrow...

Following is the PP vs VV plot of a cyclic process 1→2,2→3,3→4,4→11 \rightarrow 2,2 \rightarrow 3,3 \rightarrow 4,4 \rightarrow 1, denoted as I, II, III and IV respectively for a system of one mole of an ideal gas. Assume that there is heat exchange between the system and surroundings only in II and IV. Which of the following is/are correct? Following is the P vs V plot of a cyclic process 1 arrow 2,2 arrow 3,3 arrow 4,4 arrow 1 , denoted as I, II, III and IV

Options

  1. AIn II and IV ΔS\Delta \mathrm{S} is zero
  2. BIn I and III, ΔS\Delta \mathrm{S} is zero
  3. CI and III are isothermal and reversible
  4. DIn II and IV, change in internal energy of the gas (ΔU)(\Delta \mathrm{U}) is zero

Correct answer

B. In I and III, ΔS\Delta \mathrm{S} is zero

Step-by-step solution

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