Question

The pressure of a gas is _____ affected by the temperature and number of gas particles in a system, and it is _____ affected by the volume of gas in the system.

a. directly; directly
b. directly; inversely
c. inversely; directly
d. inversely; inversely

Answer 1

The pressure of a gas is directly affected by the temperature and number of gas particles in a system, and inversely affected by the volume of gas in the system.

Answer 2

The answer is b. I feel the pressure of gas affect the temperature and number in the system.