What are extensive and intensive properties. Give suitable example.

What are the factors on which internal energy '$\mathrm{E}$' depends ?

How $∆\mathrm{H}$ and $∆\mathrm{E}$ are related in case of reaction $2{\mathrm{SO}}_{2\left(\mathrm{g}\right)}+{\mathrm{O}}_{2\left(\mathrm{g}\right)}\to 2{\mathrm{SO}}_{3\left(\mathrm{g}\right)}$

Discuss the importance of Heat of combustion.

Heat of neutralisation of a weak acid with a strong base is less than $57.1 \mathrm{kJ}$, Justify. 

Explain how resonance energy affect bond energy.

What is meant by standard free energy change ?

Discuss the effect of temperature on $∆\mathrm{G}$.