In an adiabatic process, no transfer of heat takes place between system and surroundings. Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following.
(i) q = 0, ∆T ≠ 0, w = 0
(ii) q ≠ 0, ∆T = 0, w = 0
(iii) q = 0, ∆T = 0, w = 0
(iv) q = 0, ∆T < 0, w ≠ 0 Vf
In an adiabatic process, no transfer of heat takes place between system and surroundings. Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following.
(i) q = 0, ∆T ≠ 0, w = 0
(ii) q ≠ 0, ∆T = 0, w = 0
(iii) q = 0, ∆T = 0, w = 0
(iv) q = 0, ∆T < 0, w ≠ 0 Vf
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1 Answer
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This is a Multiple Choice Questions as classified in NCERT Exemplar
Option (iii)
In free expansion, w=0 because volume is constant, as the process is adiabatic q = 0 and from first law of thermodynamics.
U=q+w
This means that internal energy remains constant.
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