Which factor primarily determines the pressure exerted by a gas in a container? Color of the container Type of gas molecules Volume of the container Number of collisions per unit area

The factor that primarily determines the pressure exerted by a gas in a container is the number of collisions per unit area. This is based on the kinetic theory of gases, which states that gas molecules are in constant motion and collide with each other and the walls of the container. The more collisions there are per unit area, the greater the pressure exerted by the gas. The volume of the container also affects the pressure, as a smaller volume will result in more collisions and thus higher pressure. The type of gas molecules and the color of the container do not directly affect the pressure exerted by the gas.