Question

What happens to the pressure and the molecules inside a unicycle tire that is being pumped up?

A. The pressure decreases, and the molecules slow down.

B. The pressure increases, and the molecules collide with the tire's inner surface.

C. The pressure increases, and the molecules slow down.

D. The pressure decreases, and the molecules collide with the tire's inner surface.​

Answer 1

B. The pressure increases, and the molecules collide with the tire’s inner surface.