E=E∘−n0.0591log10Q at 25∘C At equilibrium, E=0,Q=K 0=E∘−n0.0591log10 K or, K= Antilog [0.0591nE∘] or, K= Antilog [0.05912×0.295] = Antilog [0.05910.590]= Antilog 10=1×1010. Related Theory The cell potential is the difference between the electrode potentials (reduction potentials) of the cathode and anode. It is called the standard electromotive force (emf) of the cell when no current is drawn through the cells.
The standard e.m.f of a galvanic cell involving cell reaction with n=2 is found to be 0.295 ~V at 25° C. The equilibrium constant of the reaction…
NEET UG 2004 — Chemistry Physical Chemistry
2004mcqhard
The standard e.m.f of a galvanic cell involving cell reaction with n=2 is found to be 0.295 V at 25∘C. The equilibrium constant of the reaction would be: (Given F=96500Cmol−1,R=8.314 J K−1 mol−1
Official previous-year question
Held on 30 Apr 2004 · Verified 9 Jul 2026.
Options
- A
2.0×1011
- B
4.0×1012
- C
1.0×102
- D
1.0×1010
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Physical Chemistry in other years
More NEET UG Physical Chemistry questions
For the reaction 2SO₂(g) + O₂(g) ⇌ 2SO₃(g), ΔH = -198 kJ. Which condition favours forward reaction?
2026medium
The unit of rate constant for a first-order reaction is:
2026easy
Among the following choose the ones with equal number of atoms. A. 212 g of $\mathrm{Na}_2 \mathrm{CO}_3(\mathrm{~s})$ [molar mass $=106 \mathrm{~g}$ ] B. 248 g of $\mathrm{Na}_2 \mathrm{O}$ (s) [molar mass $=62 \mathrm{~g}$ ] C. 240 g of $\mathrm{NaOH}(\mathrm{s})$ [molar mass $=40 \mathrm{~g}]$ D. 12 g of $\mathrm{H}_2(\mathrm{~g})$ [molar mass $=2 \mathrm{~g}$ ] E. 220 q of $\mathrm{CO}_2(\mathrm{q})$ [molar mass $\left.=44 \mathrm{~g}\right]$ Choose the correct answer from the options given below:
2025medium
For the reaction $\mathrm{A}(\mathrm{g}) \rightleftharpoons 2 \mathrm{~B}(\mathrm{~g})$, the backward reaction rate constant is higher than the forward reaction rate constant by a factor of 2500 , at 1000 K . [Given : $\mathrm{R}=0.0831 \mathrm{~L} \mathrm{~atm} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}$ ] $\mathrm{K}_{\mathrm{p}}$ for the reaction at 1000 K is
2025medium
The standard heat of formation, in $\mathrm{kcal} / \mathrm{mol}^{\text {of }} \mathrm{Ba}^{2+}$ is : [Given : standard heat of formation of $\mathrm{SO}_4^{2-}$ ion (aq) $=-216 \mathrm{kcal} / \mathrm{mol}$, Standard heat of crystallisation of $\mathrm{BaSO}_4(\mathrm{~s})=-4.5 \mathrm{kcal} / \mathrm{mol}$, standard heat of formation of $\left.\mathrm{BaSO}_4(\mathrm{~s})=-349 \mathrm{kcal} / \mathrm{mol}\right]$
2025medium
Other Chemistry topics for NEET UG
Keep practicing Physical Chemistry
Work through every NEET UG Physical Chemistry PYQ, year by year.