| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.SL.TZ1.11 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 11 | Adapted from | N/A |
Question
In the kinetic model of an ideal gas, which of the following is not assumed?
A. The molecules collide elastically.
B. The kinetic energy of a given molecule is constant.
C. The time taken for a molecular collision is much less than the time between collisions.
D. The intermolecular potential energy of the molecules is zero.
Markscheme
B
Examiners report
[N/A]
