COMEDK · Physics · 13. Thermodynamics
A gas is taken through the cycle \(A \rightarrow B \rightarrow C \rightarrow A\), as shown in figure. What is the net work done by the gas?
- A Zero
- B 2000 J
- C \(-2000\) J
- D 800 J
Answer & Solution
Correct Answer
(D) 800 J
Step-by-step Solution
Detailed explanation
Net work done = area enclosed in P-V diagram. Cycle \(A \to B \to C \to A\) is clockwise \(\to\) work done is positive. The enclosed area is a right-angled triangle. Base \(= V_C - V_A = (7 - 3) \times 10^{-3} = 4 \times 10^{-3}\) m\(^3\) Height…
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