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Question 30892
JEE Physics · Hard

Elasticity, Thermal Expansion, Calorimetry and Heat Transfer: Elasticity Advanced MCQ

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Elasticity AdvancedHardQuestion 30892

Question

For an adiabatic process in an ideal gas, bulk modulus equals:
  1. A
    P
  2. B
    γP
    Correct
  3. C
    P/γ
  4. D
    nRT

Correct answer

γP

Explanation

For adiabatic compression, PV^γ = const. B = −V(dP/dV) = γP. This explains why sound travels faster than predicted by isothermal model.

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