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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 balloon with mass m is descending down with an acceleration a
- A wire of a certain material is stretched slowly by ten percent. Its new resistance
- Three particles A,B and C are thrown from the top of a tower with the same speed.
- A bar magnet of moment M and pole strength m is cut into parts of equal lengths.
- The angular velocity of a wheel increases from 100 rps to 300 rps in 10 seconds.
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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