JEE Mains · Physics · STD 11 - 11. thermodynamics
The pressure of a gas changes linearly with volume from \(A\) to \(B\) as shown in figure. If no heat is supplied to or extracted from the gas then change in the internal energy of the gas will be \(............\,J\)
- A \(6\)
- B \(0\)
- C \(-4.5\)
- D \(4.5\)
Answer & Solution
Correct Answer
(D) \(4.5\)
Step-by-step Solution
Detailed explanation
\(\text { As } \Delta q =0\) \(\Delta u =- W\) \(W =\int PdV\) \(\Delta u =- W =30 \times 10^3 \times 150 \times 10^{-6}\) \(=4500 \times 10^{-3}\) \(=4.5\,J\)
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