alleryWhy is a catalyst used in ammonia synthesis despite low temperature favouring yield?
ALow temperatures slow it
BLow temperatures spoil it
CLow temperatures split it
DLow temperatures shrink it
Answer & Solution
Correct answer: A. Low temperatures slow it
1. Yield and rate pull in opposite directions here.
2. A cold reaction may never arrive at equilibrium in time.
3. Very low temperatures slow down the reaction and thus a catalyst is used.
4. So the answer is low temperatures slow it.
_Source: syllabus Chemistry Part I, Unit 6 'Equilibrium'_
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