Answer
By the Ideal Gas Law, pressure is directly proportional to the number of moles in a container of constant volume. Then if twice the amount of gas is added to the container, then the pressure inside the container will also be twice as large.
Work Step by Step
By the Ideal Gas Law, pressure is directly proportional to the number of moles in a container of constant volume. Then if twice the amount of gas is added to the container, then the pressure inside the container will also be twice as large.