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NEET2006PhysicsKinetic Theory of GasesActual

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:

Options

  1. A9 / 7
  2. B7 / 5
  3. C8 / 7
  4. D5 / 7

Correct answer

B. 7 / 5

Step-by-step solution

Molar specific heat at constant pressure C_P= 7 2 R We know that C_P-C_V=R aligned C_V & =C_P-R & = 7 2 R-R= 5 2 R aligned from (i) and (ii), C_P C_V = 7 5 .

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