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AP EAMCET202120 Aug 2021Evening ShiftPhysicsKinetic Theory of GasesActual

A diatomic gas is heated at constant pressure, what fraction of the heat energy is used to increase the internal energy?

Options

  1. A3 5
  2. B3 7
  3. C5 7
  4. D5 9

Correct answer

C. 5 7

Step-by-step solution

The fraction of heat energy used in increasing internal energy = n C v ∆ T n C p ∆ T = C v C p = f 2 f 2 + 1 = f f + 2 For diatomic gas, f = 5 ⇒ f f + 2 = 5 7

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