In the equilibrium $Ice \rightleftharpoons Water$,what happens when pressure is increased?

In which of the following equilibrium systems is the rate of the backward reaction favoured by an increase of pressure?

Under which conditions of temperature and pressure is the dissociation of molecular hydrogen into atomic hydrogen favored?

For the chemical reaction: $BaO_{2(s)} \rightleftharpoons BaO_{(s)} + \frac{1}{2} O_{2(g)}$,$\Delta H = +ve$. At equilibrium,the pressure of $O_2$ depends upon:

For the reaction: $A + B + Q \rightleftharpoons C + D$,if the temperature is increased,then the concentration of the products will

For the formation of $NH_{3(g)}$ from $H_{2(g)}$ and $N_{2(g)}$,which one of the following graphs represents the yield of ammonia at equilibrium? (Assume $T_1 < T_2$,unless mentioned)