Calculate the enthalpy change on freezing of 1.0 mol of water at 10.0°C to ice at –10.0°C.

Heat capacity at constant pressure is greater than heat capacity at constant volume. Why? 

Derive a relationship between C_p and C_v for an ideal gas.

Define the terms:
(i) Chemical energetics
(ii) Thermochemistry.

Comment on:
(i) ∆U is –ve for exothermic reactions and
(ii) ∆U is +ve for endothermic reactions.

Give the points of difference between exothermic reactions and enodthermic reactions.