If pressure of ideal gas increases then kinetic energy
Answers
We know that temperature is proportional to the average kinetic energy of a sample of gas. The proportionality constant is (2/3)R and R is the gas constant with a value of 0.08206 L atm K-1 mol-1 or 8.3145 J K-1 mol-1.
(KE)ave = (2/3)RT
As the temperature increases, the average kinetic energy increases as does the velocity of the gas particles hitting the walls of the container. The force exerted by the particles per unit of area on the container is the pressure, so as the temperature increases the pressure must also increase. Pressure is proportional to temperature, if the number of particles and the volume of the container are constant.
What would happen to the pressure if the number of particles in the container increases and the temperature remains the same? The pressure comes from the collisions of the particles with the container. If the average kinetic energy of the particles (temperature) remains the same, the average force per particle will be the same. With more particles there will be more collisions and so a greater pressure. The number of particles is proportional to pressure, if the volume of the container and the temperature remain constant.