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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 marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped
- A 70 kg man stands in contact against the inner wall of a hollow cylindrical drum
- The effective length of magnet is 31.4 cm and its pole strength is 0.8Am.
- Two particles of masses m₁ m₂ move with initial velocities u₁ and u₂
- The ionisation energy of an electron in the ground state of helium atom is 24.6 eV.
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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