| Date | May 2014 | Marks available | 1 | Reference code | 14M.1.SL.TZ2.11 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 11 | Adapted from | N/A |
Question
The specific latent heat is the energy required to change the phase of
A. one kilogram of a substance.
B. a substance at constant temperature.
C. a liquid at constant temperature.
D. one kilogram of a substance at constant temperature.
Markscheme
D
Examiners report
Candidates are required to learn definitions. There are conditions (such as changing pressure) where the temperature of a body changing phase may alter. If this is the case then the specific latent heat does not apply.
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