O-LevelChemistryRates of Reaction5070/11 · May/June 2011 · Q161 Mark
The following changes could be made to the conditions in the reaction between zinc and hydrochloric acid. 1 increase in concentration of the acid 2 increase in particle size of the zinc 3 increase in pressure on the system 4 increase in temperature of the system Which pair of changes will increase the rate of reaction?
A1 and 2
B1 and 4
C2 and 3
D3 and 4
✓ Correct answer
B: 1 and 4
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