Note AcademyNote Academy
Start

Chemistry · Oct / Nov 2019 · Paper 12 · Question 13

5070Exothermic and endothermic reactions

Two energy profile diagrams are shown. The scale on the y-axis is the same for both diagrams. Which statement is correct?

  1. ABoth reactions are exothermic.
  2. BOnly one reaction is endothermic.
  3. CThe activation energy of reaction 1 is smaller than the activation energy of reaction 2.
  4. DThe enthalpy change of reaction 2 is larger than the enthalpy change of reaction 1.

As printed in the paper

Show the answer

Correct answer: D. The enthalpy change of reaction 2 is larger than the enthalpy change of reaction 1.

Sit this whole paper →More on Exothermic and endothermic reactions

Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.