Question

A student added 10g, of calcium carbonate in a rigid container, secured it tightly and started to
heat it. After sometime an increase in pressure was observed, the pressure reading was then
noted at interval of 5 minutes and plotted against time in a graph as shown below. During
which time interval did maximum decomposition took place?
1.25
1.00
3.
0.75
Pressure (atm)
0.50
0.25
c) 5-10 minutes
d) 0-5 minutes
a) 15-20 minutes
b) 10-15 minutes​

Answer 1

The correct answer is (d) 0-5 minutes.

On the decomposition of the following reaction: CaCO₃ → CaO + CO₂

The time interval at which the decomposition is maximum can be concluded from the two points:

• When the Pressure of the reactant is low, the pressure of the product is high.

• When the pressure of the reactant is nearly 0, the decomposition is maximum.

So, the time interval at which the maximum decomposition takes place is 0-5 minutes.

Answer 2

Answer:

answer of the question pls mark as brainlist