| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.SL.TZ2.12 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 12 | Adapted from | N/A |
Question
A sealed container contains a mixture of oxygen and nitrogen gas.
The ratio \(\frac{{{\text{mass of an oxygen molecule}}}}{{{\text{mass of a nitrogen molecule}}}}\) is \(\frac{8}{7}\).
The ratio \(\frac{{{\text{average kinetic energy of oxygen molecules}}}}{{{\text{average kinetic energy of nitrogen molecules}}}}\) is
A. 1.
B. \(\frac{7}{8}\).
C. \(\frac{8}{7}\).
D. dependent on the concentration of each gas.
Markscheme
A
Examiners report
[N/A]
