Skip to content

Course home

Question bank·5.3 Equilibria
Sign up

5.3 Equilibria

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485
Question 5

A reversible reaction takes place in a sealed vessel.

X(g)⇌Y(g) \mathrm{X(g) \rightleftharpoons Y(g)} X(g)⇌Y(g)

The concentrations of X and Y are measured at intervals.

Time (min)Concentration of X (mol/dm³)Concentration of Y (mol/dm³)
01.200.00
20.920.28
40.800.40
60.800.40

Explain how the results show that the reaction has reached dynamic equilibrium by 6 minutes.

[3]
Markscheme

5.3 Equilibria Questions

  1. GCSE
  2. /Chemistry
  3. /5.3 Equilibria

124 exam-style questions on OCR GCSE Chemistry 5.3 Equilibria, covering 5.3.1 Reversible reactions and dynamic equilibrium and 5.3.2 Changing the position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank