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KCET2025PhysicsThermodynamics

A gas is taken from state A to state B along two different paths 1 and 2. The heat absorbed and work done by the system along these two paths are Q ₁ and Q ₂ and W ₁ and W ₂ respectively. Then

Options

  1. AW ₁= W ₂
  2. BQ ₁- W ₁= Q ₂- W ₂
  3. CQ ₁+ W ₁= Q ₂+ W ₂
  4. DQ₁=Q₂

Correct answer

B. Q ₁- W ₁= Q ₂- W ₂

Step-by-step solution

aligned & U = Q - W (By Ist law of thermodynamics) & U ₁= U ₂ & Q ₁- W ₁= Q ₂- W ₂ aligned

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