For the reaction $aA \rightleftharpoons lL + mM$,if the volume is suddenly increased,the degree of dissociation decreases. What does this indicate?

The binding of oxygen by haemoglobin $(Hb)$ forming $(HbO_2)$ is partially regulated by the concentration of $H_3O^{+}$ and dissolved $CO_2$ in blood.
$HbO_2 + H_3O^{+} + CO_2 \rightleftharpoons (H^{+} - Hb - CO_2) + O_2 + H_2O$
Release of $O_2$ is favoured when there is:

The rate of reaction of which of the following is not affected by pressure?

The reaction,$N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)}$ is exothermic and reversible. $A$ mixture of $N_{2(g)}$,$H_{2(g)}$,and $NH_{3(g)}$ is at equilibrium in a closed container. When a certain quantity of extra $H_{2(g)}$ is introduced into the container,while keeping the volume constant,then which statement among the following is true?

Which condition is more favorable for the melting of ice?

For a given equilibrium reaction,addition of inert argon gas at constant volume can shift the equilibrium in $N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)}$