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Thermodynamics question

2011 · Q115
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Thermodynamics question

2011 · Q115

NEETChemistryThermodynamicsMCQ+4 / −1
Which of the following is correct option for free expansion of an ideal gas under adiabatic condition ?
  1. A
    q = 0, Δ\DeltaΔT ≠\ne= 0, w = 0
  2. B
    q ≠\ne= 0,   Δ\DeltaΔT = 0,   w = 0
  3. C
    q = 0,   Δ\DeltaΔT = 0,   w = 0
  4. D
    q = 0,  Δ\DeltaΔT < 0, w ≠\ne= 0
View written solutionFree

Correct answer: C

For adiabatic condition, change in heat does not take place thus, q = 0.

If q = 0 then change in temperature does not take place thus, Δ\Delta ΔT = 0.

Also for a free expansion of ideal gas work done, W = 0 as there is no external pressure on it.

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