Nhich of the following causes the pressure of a gas to increase? Adding more gas to create more collisions with the container wall Cooling particles down by decreasing the temperature Removing O_(2) to slow the particles down Increasing the size of the container

The pressure of a gas is determined by the collisions of gas particles with the walls of the container. When more gas is added to the container, there are more collisions with the container wall, which increases the pressure. Therefore, the correct answer is:<br /><br />Adding more gas to create more collisions with the container wall.