Considerthe following electrode processes of a cell,
If EMF of this cell is-1.140 V and E° value of the cell is -0.55 V at 298 K, the value of the equilibrium constant of the sparingly soluble salt MCl is in the order of
Consider the single electrode process 4H+ + 4e- 2H2 catalysed by platinum black electrode in HCl electrolyte. The potential of the electrode is -0.059 V. SHE. What is the concentration of the acid in the hydrogen half cell if the H2 pressure is 1 bar?
4H+ + 4e- 2H2
A solution of Ni(NO3)2 is electrolysed between platinum electrodes using 0.1 Faraday electricity. How many mole of Ni will be deposited at the cathode?
Calculate the standard cell potential (in V) of the cell in which following reaction takes place :
Fe2+ (aq) + Ag+(aq) → Fe3+(aq) + Ag(s)
E°Ag+/ Ag = xV
E°Fe2+/ Fe = yV
E°Fe3+/ Fe = zV
Consider the statement S1 snd S2:
S1: Conductivity always increases with decreases in the concentraction of electrolyte
S2: Molar Conductivity always increase with decreases in the concentration of Electrolyte.
The correct option among the following
S1 is correct and S2 is wrong
both S1 and S2 are correct
Both S1 and S2 are wrong
S1 is wrong S2 is correct
The pressure of H2 required to make the potential of H2-electrode zero in pure water at 298 K is
A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known as
When 0.1 mol MnO42- is oxidised, the quantity of electricity required to completely oxidise MnO42- to MnO42- is
2 x 96500C