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Manipal MET2015ChemistryThermodynamics (C)

Enthalpy is equal to

Options

  1. AT^2 [ (G / T) T ]_p
  2. B-T^2 [ (G / T) T ]_p
  3. CT^2 [ (G / T) T ]_V
  4. D-T^2 [ (G / T) T ]_V

Correct answer

B. -T^2 [ (G / T) T ]_p

Step-by-step solution

The Gibbs-Helmholtz equation is as G=H+T [ G T ]_p Dividing above equation by T^2 G T^2 = H T^2 + 1 T [ G T ]_p This on rearrangement becomes. [ (G / T) T ]=- H T^2 Thus, enthalpy, H=-T^2 [ G / T T ]_p Where, H= enthalpy

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