Explain dynamic nature of chemical equilibrium with suitable example.

For the equilibrium, $\mathrm{A}\rightleftharpoons 2\mathrm{B}+\mathrm{Heat}$, the number of $\text{'}\mathrm{A}\text{'}$ molecules increases if

State and explain Le Chatelier's principle suitably with reference to change in temperature.

State and explain Le Chatelier's principle suitably with reference to change in concentration.

What is the effect of adding chloride on the equilibrium?

$\mathrm{AgCl}\left(\mathrm{g}\right)\rightleftharpoons {\mathrm{Ag}}^{\oplus }\left(\mathrm{aq}\right)+{\mathrm{Cl}}^{\ominus }\left(\mathrm{aq}\right)$