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Thermodynamics — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThermodynamics1 Mark
MCQ
The spontaneity of a reaction is indicated by :
  • A
    Enthalpy change
  • B
    Entropy change
  • ✓
    Gibbs free energy change
  • D
    Specific heat capacity
✓

Answer

Correct option: C.
Gibbs free energy change
The spontaneity of a reaction is indicated by gibbs free energy change.
A negative value of gibbs free energy change indicates the reaction is spontaneous.
A positive value of gibbs free energy change indicates the reaction is non spontaneous.
Zero value of gibbs free energy change indicates the reaction is at equilibrium.

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