If the number of gas particles in a container is halved while keeping temperature and pressure constant, what happens to volume?

When the number of gas particles in a container is halved while maintaining constant temperature and pressure, the volume of the gas also decreases. This outcome is a direct application of Avogadro's Law, which states that at constant temperature and pressure, the volume of a gas is directly proportional to the number of moles (or particles) of that gas.

According to this law, if you decrease the number of gas particles by half, the volume will also reduce to half of its original value in order to maintain constant pressure and temperature. Therefore, halving the quantity of gas leads to a corresponding decrease in volume to maintain the same conditions within the gas container.