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AP EAMCET202421 May 2024Morning ShiftPhysicsThermodynamicsActual

A monoatomic gas of n -moles is heated from temperature T₁ to T₂ under two different conditions. (i) at constant volume and (ii) at constant pressure. The change in internal energy of the gas is

Options

  1. AMore when heated at constant volume
  2. BMore when heated at constant pressure
  3. CSame in both the cases
  4. DZero in both the cases

Correct answer

C. Same in both the cases

Step-by-step solution

For mono atomic gas, f =3 At constant volume, ( U )₁= nfR ~T 2 = 3 nR ( ~T ₂- T ₁ ) 2 At constant pressure, aligned & ( U )₂= nfR ~T 2 = 3 nR ( ~T ₂- T ₁ ) 2 & ( U )₁=( U )₂ aligned

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