Define heat capacity ?

What is the realtionship between C_p and C_v?

53.

What are exothermic and endothermic reactions?

What is the standard state of the substance?

State with reason whether the work is done by the system on the surroundings or on the system by the surroundings if the following change occurs at constant pressure:

What is the enthalpy of formation of the most stable form of an element in its standard state?

Comment on the thermodynamic stability of NO(g), given