Changing the pressure
1 mark · EasyState the type of reactions, in terms of phases, that are affected by changes in pressure at equilibrium.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Reactions involving gases
Also accept: Gas-phase reactions; Reactions where at least one substance is a gas; Equilibria involving gases
Common mistakes: Reactions involving only solids or liquids; All reactions
Show mark scheme and worked solution
Marking points
B1 · 1 mark · States that only reactions involving gases are affected by pressure changes
Worked solution
Only reactions involving gases are affected by pressure changes, because pressure mainly affects gases.