Q. 3

Which of the following statement is correct?
A.

B. ECell and ΔrG of cell reaction both are intensive properties.

C. ECell is an intensive property while ΔrG of cell reaction is an extensive property.

D. ECell is an extensive property while ΔrG of cell reaction is an intensive property.

Answer :

The relation between ΔrG and Ecell is given by ∆rG = –nFEcell. ∆rG is the Gibbs energy of the reaction and Ecell is the cell potential. nF is the amount of charge passed in the cell.


Ecell is an intensive property, it does not depend on the quantity of the substance, while Gibbs energy is extensive and thermodynamic property, which depends on the number of charges. Option (iii) is correct.

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