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If Q, E and W denote respectively the heat added, change in internal energy and the work done in a closed cyclic process, then:
Options
(a) W = 0
(b) Q = W = 0
(c) E = 0
(d) Q = 0
Correct Answer:
E = 0
Explanation:
In a cyclic process, the initial state coincides with the final state. hence, the change in internal energy is zero, as it depends only on the initial and final states. But Q and W are non-zero during a cycle process.
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle is dropped from a building. It takes 4 sec for the particle to reach the ground
- If a mass of 20g having charge 3.0 mC moving with velocity 20ms⁻¹ enters a region
- A black body is heated from 27° C to 127° C. The ratio of their energies of radiations
- Two capacitors 3μF and 4μF, are individually charged across a 6 V battery.
- In P-N junction having depletion layer of thickness 10⁻⁶ m, the potential across
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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