Calculate the amount of electricity required to deposite 1 mol Cu atom at the cathode.

Calculate the amount of heat required to vaporise 1g of ice initially at 0^@C .

Calculate the amount nof heat required to change 5.0 kg of a ice to -20°C into steam at 100°C .

Calculate the amount of NaCl which must be added to one kilogram of water so that the freezing point of water is depressed by 3K (Given K_f = 1.86KKg mol^(-1) )

Calculate the charge in coulombs required for oxidation of 2 moles of water to oxygen. (Given 1 F = 96500 mol^-1 )

Calculate the amount of benzoic acid (C_6H_5COOH) required for preparing 250 mL of 0.15 M solution in methanol.

Calculate the electric field at a point on the axial line of a dipole at 20 cm from the centre. The dipole is made of +- 10mu C charges separated by 1 cm.

Calculate the amount of work done on 1gm-mole gas at 27^@C when volume increase twice isothermally.

In a cold climate water gets forzen causing damage to the radiator of a car. Ethylene glycol is used as an antifreezing agent for the purpose. Calculate the amount of ehtylene glycol to be added to 4kg of water to prevent it from freezing at -6^@C ( K_f for water = 1.85 K mol^(-1) kg)