Question

X + Y XY + heat What happens as the temperature is increased?

Answer 1

What happen  as  temperature is increased is that the equilibrium  will  shift to the  left  that is the side of the reactant.

   
The increase of temperature in  is X +Y⇆XY  reaction led  to the  shift of equilibrium to the  left (reactants  side). This is because the  reaction  between  X and Y is  exothermic(release heat)  and thus  increase in temperature  will  led to increase   in amount of the  product.  This led to the   shift of the balance at equilibrium    toward the reactants side.