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Thermal Physics

Thermal Properties of Matter
Thermodynamics
Kinetic Theory
  1. The molar specific heat at constant pressure of an ideal gas is (7/2) R. The ratio of specific heat at constant pressure to that at constant volume is
    1. 8/7
    2. 5/7
    3. 9/7
    4. 7/5
Correct Option: D

Cp =
7
 R; CV = Cp - R =
7
 R - R =
5
R =
Cp
 =
7/2 R
 =
7
222Cv5/2 R5


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