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Heat and Thermodynamics question

2008 · Q159
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Heat and Thermodynamics question

2008 · Q159

NEETPhysicsHeat and ThermodynamicsMCQ+4 / −1
If Q, E and W denote respectively the heat added, change in internal energy and the work done in a closed cyclic process, then
  1. A
    E = 0
  2. B
    Q = 0
  3. C
    W = 0
  4. D
    Q = W = 0
View written solutionFree

Correct answer: A

Internal energy depends only on the initial and final states of temperature and not on the path. In a cyclic process, as initial and final states are the same, change in internal energy is zero. Hence E is Δ\Delta ΔU, the change in internal energy.

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