Question

the particles in gas a and gas b are moving at the same average speed. each particle has the same mass. which has the higher gas pressure? gas a gas b neither; their gas pressures are the same

Explanation:

Step1: Recall pressure - particle relationship

Gas pressure is due to the collisions of particles with the container walls. When particles have the same mass and average speed, the number of collisions per unit area per unit time determines the pressure. Since no information is given about the number of particles (density) or the volume of the containers of gas A and gas B, we assume all other factors are equal.

Step2: Determine pressure equality

If particles in both gases have the same mass and average speed and all other factors are the same, the force exerted per unit area (pressure) is the same.

Answer:

neither; their gas pressures are the same