State an explain the result of an increase in temperature on the following equilibria: N2 (g) + 02 (g) <-> 2 NO (g) (delta H = +180kJmol-1)
An increase temperature favours the endothermic direction of an equilibrium reaction; this is because there is more energy in the surroundings to accommodate for the energy that will be taken into the system during the reaction. From the positive delta H value we can see that the forward reaction is endothermic. This is because there is an increase in enthalpy, meaning energy is taken in from the surroundings as the reaction progresses. As a result, the position of equilibrium would move to the right, as the forward reaction is favoured.
SG
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