According to Le Châtelier's principle, how would a change in pressure affect a gaseous system in equilibrium?

Le Châtelier's principle states that when a chemical system at equilibrium is distributed by a change in  conditions, the equilibrium position will shift in a direction that tends to counteract  the change.

Therefore, when there is a change in pressure, the equilibrium will  counteract  the change by reducing/increasing the pressure through adjusting the no. of moles of gas.

Note: At constant temperature and volume the pressure of a gas is directly proportional to the number of moles of gas.

For example, when there's an increase in total pressure, the equilibrium position will shift to the side with a smaller no. of moles of gas so as to reduce the pressure.

Density of carbon tetrachloride = 12.8 g/mL

Explanation:

Given :

Mass of carbon tetrachloride: -

Mass of carbon tetrachloride = 201.7 g

Given, Volume = 15.7 mL

Considering the expression for density as:

So,

Density of carbon tetrachloride = 12.8 g/mL