Explain the relationship of a gas’s pressure to its volume, temperature, and number of particles.

Answer 1

Pressure of a gas is essentially a measure of collisions of the gas with the walls of the container, ie, force per unit area.

-If the volume of the container is increased, the gas has less change to hit the walls and hence the pressure will decrease.

-If the temperature is increased, the particles of gas will have more energy, will move faster, and will collide more often and with more force with the walls of the container, and the pressure will increase.

-If the number of particles increases, the chance of collision with the walls of the container increases, and the pressure increases.