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MHT CET202616 April 2026Evening ShiftChemistryThermodynamics (C)Actual

Which of the following statements is not correct ?

Options

  1. AG^ is an extensive property.
  2. BE^ cell is an intensive property.
  3. CFor a chemical reaction to be spontaneous G must be - ve .
  4. DElectrical work is equal to G

Correct answer

D. Electrical work is equal to G

Step-by-step solution

Gibbs free energy ( G ) and standard Gibbs free energy change ( G^ ) depend on the quantity of the substance, hence they are extensive properties. Standard cell potential ( E^ _ cell ) is independent of the amount of substance, hence it is an intensive property. For a spontaneous reaction at constant temperature and pressure, the change in Gibbs free energy ( G ) must be negative ( G The reversible electrical work done by a galvanic cell is equal to the decrease in its Gibbs free energy. Therefore, electrical work

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