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JEE Main 2023 (15 Apr, Shift 1) · P-V Diagrams & Cyclic Processes

P-V Diagrams & Cyclic Processes question from JEE Main 2023 (15 Apr, Shift 1)

Q42JEE Main 2023 · 15 APR · SHIFT 1Easy

P-V Diagrams & Cyclic Processes

A thermodynamic system is taken through cyclic process. The total work done in the process is:

Figure

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Answer: (c)

  1. Net work = area of the closed loop; cycle D→E→C→DD \to E \to C \to D is clockwise, so work is positive.
  2. Triangle: base =4−2=2 m3= 4 - 2 = 2\ \text{m}^3, height =400−100=300 Pa= 400 - 100 = 300\ \text{Pa}.
  3. W=12×2×300=300 JW = \frac{1}{2} \times 2 \times 300 = 300\ \text{J}
  4. So the answer is (c) 300 J300\text{ J}.
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