Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 11
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Let Q and W Denote the Amount of Heat Given to an Ideal Gas and the Work Done by It in an Adiabatic Process. - Physics

Answer in Brief

Let Q and W denote the amount of heat given to an ideal gas and the work done by it in an adiabatic process.
(a) Q = 0
(b) W = 0
(c) Q = W
(d) Q ≠ W

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Solution

(a) Q = 0
(d) Q ≠ W 
In an adiabatic process, no heat is supplied to the system; so, Q = 0. According to the first law of thermodynamics, heat given to any system is equal to the sum of the change in internal energy and the work done on the system. So, Q = W+U and as Q = 0, W = -U and  Q ≠ W.

Concept: Kinetic Theory of Gases and Radiation - Introduction of Kinetic Theory of an Ideal Gas
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APPEARS IN

HC Verma Class 11, Class 12 Concepts of Physics Vol. 2
Chapter 5 Specific Heat Capacities of Gases
Q 3 | Page 77
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