alleryIce and water show no change in mass because the two transfer rates are:
AErratic
BExtreme
CElastic
DEqual
Answer & Solution
Correct answer: D. Equal
1. Molecules cross in both directions continuously.
2. The masses hold steady only if the crossings balance.
3. There is no change of mass because the rates of transfer each way are equal.
4. So the answer is equal.
_Source: syllabus Chemistry Part I, Unit 6 'Equilibrium'_
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