The gas volume formed when $100\,\text{cm}^3$ of hydrochloric acid reacts with excess calcium carbonate is recorded in two experiments. The gas volumes are taken at r.t.p., and the findings are displayed. Which single change in the conditions for experiment 1 would produce the results shown for experiment 2? Assume that every other condition stays the same.
- AA greater volume of acid is added.
- BA higher concentration of acid is used.
- CSmaller pieces of calcium carbonate are used.
- DThe temperature of the acid is higher.