DP Physics (first assessment 2025)
Question EXE.2.SL.TZ0.10d
| Date | Example questions Example questions | Marks available | [Maximum mark: 4] | Reference code | EXE.2.SL.TZ0.10d |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | Explain | Question number | d | Adapted from | N/A |
d.
[Maximum mark: 4]
EXE.2.SL.TZ0.10d
(d)
The temperature of the gas in the container is increased.
Explain, using the kinetic theory, how this change leads to a change in pressure in the container.
[4]
Markscheme
increased temperature means increased average KE and hence increased average translational speed ✓
This increases the momentum transfer at the walls for each collision / mv is greater per collision ✓
This increases the frequency of collisions at the walls / particles cover the distance between walls more quickly ✓
Ideas that AND (can be in words) so that force increases and pressure increases ✓
