CAIE A Level Chemistry 9701 · Reaction kinetics
In an experiment, hydrogen and iodine monochloride react in the gas phase. State two conditions that must be satisfied for a collision between a molecule of hydrogen and a molecule of iodine monochloride to result in a reaction. For each condition, explain why it is necessary.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Suggest means: Apply what you know to an unfamiliar situation. There may be more than one acceptable answer. Reason from the principle you have learned to the new context, and say which principle you are using.
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