| Date | November 2013 | Marks available | 1 | Reference code | 13N.1.hl.TZ0.20 |
| Level | HL | Paper | 1 | Time zone | TZ0 |
| Command term | Deduce | Question number | 20 | Adapted from | N/A |
Question
The diagram below shows the energy changes for a reaction with and without a catalyst. Which symbols represent the activation energy, \({E_{\text{a}}}\), and the enthalpy change, \(\Delta H\), for the reaction with a catalyst?
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Syllabus sections
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