Question

A student added 10 g of calcium carbonate in a rigid container, secured it tightly and started to heat it. After some time, an increase in pressure was observed, the pressure reading was then noted at intervals of 5 mins and plotted against time, in a graph as shown below. During which time interval did maximum decomposition take place?

Options

• 15-20 min

• 10-15 min

• 5-10 min

• 0-5 min

Answer 1

0-5 min