Question

Which of the following best applies to the pressure of a gas?

A. It is the force per unit volume.
B. It decreases with temperature.
C. It increases with volume.
D. It is the sum of the collisions of the molecules.

Is it a or d.

Answer 1

I would rule out a; pressure is force per unit AREA and area is not volume. If the author intended a to be the answer I think s/he erred. Answer B doesn't make sense; it decreases with decreasing T but it increases with increasing T. C makes no sense either. I think D is the best answer.

Answer 2

IT is D