Write a short note on enthalpies for different types of reactions?

i) Heat of Formation : It is “The amount of heat evolved (or) absorbed during the formation of one mole of the compound at constant temperature from the constituent elements in the standard state.
Eg : Heat or formation of CO₂
C_(s) + O_2(g) $\to$CO_2(g) : $∆$H = -393.5KJ
ii) Enthalpy of fusion : The enthalpy change that accompanies melting of one mole of a solid substance in standard state is called enthalpy of fusion.
H₂O(s) $\to$H₂O_(l) ; $∆$H = 6.0KJ /mole 
iii) Enthalpy of Vapourisation : Amount of heat required to vapourise one mole of a liquid at constant temperature and pressure is called its enthalpy of vapourisation.
iv) Enthalpy of sublimation : The amount of heat required to convert one mole of a simple substance in the solid state into the gaseouos state without decomposition of the substance.
v) Enthalpy of combustion : The heat evolved when one mole of a substance is completely burnt at constant volume in excess of oxygen is called it’s heat of combustion.