Question

1. If 150 cc of gas A contains X molecules, how many molecules of gas B will be present in 75 cc of B? The gases A and B are under the same conditions of temperature and pressure.
2. Name the law on which the above problem is based.

Answer 1

(i) According to Avogadro's law, equal volumes of different gases have the same number of molecules under the same conditions of temperature and pressure.

As 150 cc of gas A contains X molecules, 150 cc of gas B also contains X molecules.

So, 75 cc of B will contain `X/2` molecules.

(ii) The problem is based on Avogadro's law.