NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: In equation

\Delta_r G=-n F E_{\text{cell}}

value of

\Delta_r G

depends on

n

.

Reasons R:

E_{\text {cell }}

is an intensive property and

\Delta_r G

is an extensive property.

In the light of the above statements, choose the correct answer from the options given below.

View answer and explanation

Correct option: C

Both A and R are true and R is the correct explanation of A

Option D is correct because the Gibbs free energy change depends on the amount of substance (extensive property), while the cell potential is independent of the amount (intensive property), and this difference explains why

\Delta_r G

depends on n.

More Questions from ELECTRO CHEMISTRY

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4.5 g of Al (at. mass 27 amu) is deposited at cathode from

A{l^{3 + }}

solution by a certain quantity of charge. The volume of

{H_2}

produced at STP from

{H^ + }

ions in solution by the same quantity of charge will be : The correct order of molar conductivity at infinite dilution of

\mathrm{LiCl},{\rm{NaCl {\kern 1pt}{\kern 1pt}and {\kern 1pt}{\kern 1pt}KCl}}

is A solution of copper sulphate

\left(\mathrm{CuSO}_4\right)

is electrolysed for 10 minutes with a current of 1.5 amperes. The mass of copper deposited at the cathode (at. mass of Cu = 63 u) is The desired amount of charge for obtaining one mole of Al from

\mathrm{A}{\mathrm{l}^{3 + }}

is When an aqueous solution of lithium chloride is electrolysed using graphite electrodes : Which are used as secondary reference electrodes?