| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.sl.TZ1.14 |
| Level | SL | Paper | 1 | Time zone | TZ1 |
| Command term | Derive | Question number | 14 | Adapted from | N/A |
Question
Which expression gives the enthalpy change, ΔH, for the thermal decomposition of calcium carbonate?
A. ΔH = ΔH1 − ΔH2
B. ΔH = 2ΔH1 − ΔH2
C. ΔH = ΔH1 − 2ΔH2
D. ΔH = ΔH1 + ΔH2
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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