MEDIUM
AMU-AT (B.Tech.)
IMPORTANT
Earn 100

The standard e.m.f. for the cell reaction, 2Cu+aqCus+Cu2+aq is +0.36 V at 298 K. The equilibrium constant of the reaction is

50% studentsanswered this correctly

Important Questions on Electrochemistry

MEDIUM
AMU-AT (B.Tech.)
IMPORTANT
The emf of the cell Cd CdCl2 (solution) ( 1 atm) |AgCl(s)|Ag is 0.675 at 25°C. The temperature coefficient of the cell is -65×10-4 V degree-1 . Find the change in heat content (kJ mol-1 ) and entropy Vdeg-1 for the electrochemical reaction that occurs when 1 F of electricity is drawn for it
MEDIUM
AMU-AT (B.Tech.)
IMPORTANT
0.002M solution of a weak acid has an equivalent conductance (Λ)60ohm-1 cm2eq-1. What will be the pH ? (Given : Λ°=400ohm-1 cm2eq-1 ]
MEDIUM
AMU-AT (B.Tech.)
IMPORTANT

The standard emf of the cell Ecell ° and equilibrium constant Keq of the following reaction of 298 K

Cd2++4NH3CdNH342+

EASY
AMU-AT (B.Tech.)
IMPORTANT
Which colourless gas evolves when NH4Cl reacts with zinc in a dry cell battery ?
MEDIUM
AMU-AT (B.Tech.)
IMPORTANT
Ionic mobility of Ag+ is λAg+=5×10-1 ohm-1 cm2 eq-1
MEDIUM
AMU-AT (B.Tech.)
IMPORTANT

The standard e.m.f. of the cell, CdsCdCl2aq0.1M|AgCls|Ags in which the cell reaction is Cds+2AgCls2Ags+Cd2+aq+2Cl-aq is 0.6915 V at 0°C and 0.6753 V at 25°C. The enthalpy change of the reaction at 25°C is

MEDIUM
AMU-AT (B.Tech.)
IMPORTANT
The standard e.m.f. for the cell reaction, 2Cu+aqCus+Cu2+aq is +0.36 V at 298 K. The equilibrium constant of the reaction is