DP Chemistry (last assessment 2024)

Test builder »

Question 20N.3.sl.TZ0.a

Select a Test
Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.3.sl.TZ0.a
Level sl Paper 3 Time zone TZ0
Command term Calculate Question number a Adapted from N/A
a.
[Maximum mark: 1]
20N.3.sl.TZ0.a

Gasoline (petrol), biodiesel and ethanol are fuels.

[U.S. Department of Energy. https://afdc.energy.gov/] 

Calculate the energy released, in kJ, from the complete combustion of 5.00 dm3 of ethanol.

[1]

Markscheme

«21 200 kJ dm−3×5.00 dm3=»106000/1.06×105«kJ» ✔

Examiners report

Even rather weak candidates answered this one correctly.

Syllabus sections