| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.HL.TZ2.11 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 11 | Adapted from | N/A |
Question
During an adiabatic expansion, a gas does 50J of work against the surroundings. It is then cooled at constant volume by removing 20J of energy from the gas. The magnitude of the total change in internal energy of the gas is
A. 70 J.
B. 50 J.
C. 30 J.
D. 20 J.
Markscheme
A
Examiners report
Syllabus sections
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