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

Related Chemistry A Level answers

All answers ▸

Describe the conditions used in the Haber Process and explain briefly why they are used.


Unsaturated fats change bromine water from orange to colourless. How?


Explain why benzene requires use of a halogen carrier catalyst to react with bromine while phenol does not.


24.3cm^3 of 0.02moldm-3 KMnO4 reacted with 20cm^3 of iron (II) solution. Calculate the molarity of the iron (II) solution.