DP Chemistry (last assessment 2024)
Question 19M.3.sl.TZ1.11a
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.sl.TZ1.11a |
| Level | sl | Paper | 3 | Time zone | TZ1 |
| Command term | Calculate | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 1]
19M.3.sl.TZ1.11a
Natural gas is an energy source composed mainly of methane.
(a)
Calculate the specific energy of methane, in MJ kg−1, using sections 1, 6 and 13 of the data booklet.
[1]
Markscheme
« = 55.5 kJ g–1 =» 55.5 «MJ kg–1» [✔]
Examiners report
About half the candidates were able to locate the appropriate data and use it to calculate the specific energy of methane.
