| Date | November 2017 | Marks available | 1 | Reference code | 17N.1.hl.TZ0.16 |
| Level | HL | Paper | 1 | Time zone | TZ0 |
| Command term | Question number | 16 | Adapted from | N/A |
Question
What is the standard enthalpy of formation, in kJ mol–1, of IF (g)?
IF7 (g) + I2 (s) → IF5 (g) + 2IF (g) ΔH\(^\theta \) = –89 kJ
ΔH\(_f^\theta \) (IF7) = –941 kJ mol–1
ΔH\(_f^\theta \) (IF5) = –840 kJ mol–1
A. –190
B. –95
C. +6
D. +95
Markscheme
B
Examiners report
[N/A]
Syllabus sections
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