Cd (s) + 2H + (aq) Cd 2+ (aq) + H 2 (g)
State the effect on the E cell when the following changes are made.
a) The pressure of gas increased in the cathode compartment.
b) Sodium hydroxide is added at cathode compartment.
c) Decreasing the concentration of Cd 2+ .
d) Increasing the diameter of electrodes.
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