Question

In which of the following conditions, the distance between the molecules of hydrogen gas would increase?
(i) increasing pressure on hydrogen contained in a closed container
(ii) some hydrogen gas leaking out of the container
(iii) increasing the volume of the container of hydrogen gas
(iv) adding more hydrogen gas to the container without increasing the volume of the container
(a) (i) and (iii)
(b) (i) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)

Answer 1

(ii) some hydrogen gas leaking out of the container

(iii) increasing the volume of the container of hydrogen gas

Explanation:

It is given that we have a container with hydrogen gas.

• There are various ways of increasing gap between the molecules of hydrogen molecules.
• Increasing pressure doesnt increase the gap as it reduces the volume nature of a gas which thereby decreases the gap between the molecules.
• By removing gas from the container we reduce the number of molecules in a container.This means that we have more space for randomness for the particles to roam. This there by increases the gap between the molecules.

• Similarly increasing volume of the container also increases the gap between the molecules.