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NEET
Exam
NEET
Subject
Physics
Chapter
Thermodynamics

NEET · Physics · Thermodynamics

A gas is taken through the cycle A arrow B arrow C arrow A , as...

A gas is taken through the cycle A→B→C→AA \rightarrow B \rightarrow C \rightarrow A, as shown in figure. What is the net work done by the gas? A gas is taken through the cycle A arrow B arrow C arrow A , as shown in figure. What is the net work done by the gas?

Options

  1. A2000 J2000 \mathrm{~J}
  2. B1000 J1000 \mathrm{~J}
  3. CZero
  4. D−2000 J-2000 \mathrm{~J}

Correct answer

B. 1000 J1000 \mathrm{~J}

Step-by-step solution

Net work done by the gas = Area enclosed in p−Vp-V curve, i.e. area of △ABC\triangle A B C. Wnet =12×5×10−3×4×105J=103J=1000W_{\text{net }}=\frac{1}{2} \times 5 \times 10^{-3} \times 4 \times 10^5 \mathrm{ J}=10^3 \mathrm{ J}=1000J\mathrm{ J}
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