A-LevelChemistryReaction kinetics9701/12 · Oct/Nov 2009 · Q331 Mark
Why does a mixture of hydrogen gas and bromine gas react together faster at a temperature of 500 K than it does at a temperature of 400 K? 1 A higher proportion of effective collisions occurs at 500 K. 2 Hydrogen molecules and bromine molecules collide more frequently at 500 K. 3 The activation energy of the reaction is lower at 500 Κ.
A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
✓ Correct answer
B: 1 and 2 only are correct
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Reaction kinetics and see which topics are most likely to come up next.
Sign up free →