| Date | November 2015 | Marks available | 1 | Reference code | 15N.1.SL.TZ0.7 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 7 | Adapted from | N/A |
Question
A heat engine does 300 J of work during one cycle. In this cycle 900 J of energy is wasted. What is the efficiency of the engine?
A. 0.25
B. 0.33
C. 0.50
D. 0.75
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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