5.20 Explain, for a fixed amount of gas, the qualitative relationship between: pressure and volume at constant temperature, pressure and Kelvin temperature at constant volume.
5.20 Explain, for a fixed amount of gas, the qualitative relationship between: pressure and volume at constant temperature, pressure and Kelvin temperature at constant volume.
As you heat the gas, the kinetic energy of the particles increases, and thus so does their average speed.
This means more collisions per second with the walls, and they exert a larger force on the wall.
This causes in the total pressure being exerted by the particles to rise.
If temperature is constant, the average speed of the particles is constant.
If the same number of particles is placed in a container of smaller volume they will hit the walls of the container more often.
More collisions per second means that the particles are exerting a larger force on the wall over the same time, so average force exerted on the walls has increased.
