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NEETChemistryThermodynamics (C)

The combination of plots which does not represent isothermal expansion of an ideal gas is ( A ) ( B ) C ( D )

Options

  1. AA and D
  2. BB and C
  3. CB and D
  4. DA and C

Correct answer

C. B and D

Step-by-step solution

PV = constant (isothermal expansion) P ∝ 1 V . The graph will be a straight line, y = mx + c . So, the above graph is correct. PV = constant (isothermal expansion) On increasing or decreasing P , PV becomes constant. So, the above graph is correct. A , C graphs are correct. PV = constant (isothermal expansion) P ∝ 1 V . The graph will be a straight line, y = mx + c . So, the above graph is incorrect. ΔU = nC v dT and for isothermal process, ΔU = 0 . So, the above graph is incorrect. Options B , D are incorrect.

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