For a weak acid (`alpha` is very small)

For weak acid ( alpha is very small)

Two square plates of side 'a' are arranged as shown in the figure. The minimum separation between plates is 'd' and one of the plate is inclined at small angle alpha with plane parallel to another plate. The capacitance of capacitor is (given alpha is very small)

Two square plates of side 'a' are arranged as shown in the figure. The minimum separation between plates is 'd' and one of the plate is inclined at small angle alpha with plane parallel to another plate. The capacitance of capacitor is (given alpha is very small)

Prove that the dergee of dissociation of weak acid is given by: alpha = (1)/(1+10^(pK_(a)-pH)) where K_(a) is its dissociation constant of the weak acid.

Prove that the dergee of dissociation of weak acid is given by: alpha = (1)/(1+10^(pK_(a)-pH)) where K_(a) is its dissociation constant of the weak acid.

If C the concentration of a weak electrolyte , alpha is the degree of ionization and K_a is the acid ionization constant , then the correct relationship between alpha , C and K_a is