Step-by-step explanation:
The reaction is given as;
SO2(g) ⇄ S(s) + O2(g) ΔH° = 297 kJ
This reaction is an endothermic reaction because of the positive value of the ΔH°. Increasing the temperature for an equilibrium reaction with froward reaction being endothermic leads to increase in equilibrium constant (K).
Regarding equilibrium concentration;
In an equilibrium reaction, any change to the system is annuled. If there is an increase in temperature, in order to annul that, the forward reaction is favoured leading to increase in concentration of of the products and decrease in reactants.