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 ▸

Write an expression and units for equilibrium constant for this reaction: 2SO2(g)+O2(g)<-->2SO3(g)


Excess KCN(aq) is added to a solution of [Co(H2O)6]2+. Identify the complex ion formed and predict its shape and charge.


How do you answer a long answer question on how buffer systems work?


Explain, in terms of frequencies, why solutions of transition metal ions are often coloured.