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NEET2018PhysicsKinetic Theory of GasesActual

If n mole of a gas changes its temperature from T₁ to T₂ at pressure P . If C_P is given of the gas what is change in entropy?

Options

  1. An C_P ( T₁ T₂ )
  2. Bn C_P ( T₂ T₁ )
  3. Cn C_P ( T₁ T₁ )
  4. Dn C_P ( T₂ T₁ )

Correct answer

B. n C_P ( T₂ T₁ )

Step-by-step solution

aligned & d Q=n C_P d T & d Q T =n C_P d T T ; d S=n C_P d T T & S=n C_P _ T₁ ^ T₂ d T T =n C_P ( T₂ T₁ ) aligned

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