DP Physics (first assessment 2025)
Question 22N.2.SL.TZ0.b.i
| Date | November 2022 | Marks available | [Maximum mark: 1] | Reference code | 22N.2.SL.TZ0.b.i |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | State | Question number | b.i | Adapted from | N/A |
b.i.
[Maximum mark: 1]
22N.2.SL.TZ0.b.i
State one way in which a real gas differs from an ideal gas.
[1]
Markscheme
can be liquefied ✓
has intermolecular forces / potential energy ✓
has atoms/molecules that are not point objects / take up volume ✓
does not follow the ideal gas law «for all T and p» ✓
collisions between particles are non-elastic ✓
Accept the converse argument.
Examiners report
This was very well answered. Candidates showed an understanding of the differences between ideal and real gases.
