Question

Compare the system (still at 50 °C) with a volume of 1.0 L and with 3.0 L. What is the total amount of gas (mol) present in the container at each of these volumes?

Answer 1

The total amount of gas present in the container of 1 L is 0.0446 moles and in container of 3 L is 0.1334 moles.

Explanation:

It is known that 1 mole of any gaseous element contains 22.4 litres of that gas molecules. So in order to determine the total amount of gas present in 1 L and 3 L, we can divide the given volume with the reciprocal of 22.4 litre to determine the moles of gas at 1 L and 3 L respectively.

So for 1 L

$No.of moles in 1 L = \frac{1}{22.4}*1$

So no. of moles in 1 L = 0.0446 moles of that gas is present in 1 L volume.

Similarly, total amount of gas present in 3 L is

No. of moles present in 3 L = $\frac{1}{22.4} * 3 = 0.1334 moles$

So, the total amount of gas present in 1 L is 0.0446 moles and in 3 L is 0.1334 moles. Thus, it can be stated that the number of moles increases with increase in the volume or on expansion of gas molecules.