Skip to content

Course home

Sign up

8.2 Heat energy changes in chemical reactions

EasyMediumHard
12345678910111213141516171819202122232425
Question 23
F

An endothermic profile has products 60 kJ mol−160\,\mathrm{kJ\,mol^{-1}}60kJmol−1 above reactants. What is the overall energy change?

[1]
A

−60 kJ mol−1-60\,\mathrm{kJ\,mol^{-1}}−60kJmol−1

B

0 kJ mol−10\,\mathrm{kJ\,mol^{-1}}0kJmol−1

C

+60 kJ mol−1+60\,\mathrm{kJ\,mol^{-1}}+60kJmol−1

D

The activation energy, whatever its value

Markscheme

8.2 Heat energy changes in chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /8.2 Heat energy changes in chemical reactions

53 exam-style questions on Edexcel GCSE Chemistry 8.2 Heat energy changes in chemical reactions, covering 8.2.1 Exothermic and endothermic changes, 8.2.2 Bond breaking, bond making and overall energy change, 8.2.3 Calculating energy change from bond energies, and 8.2.4 Activation energy and reaction profiles. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank