# Particle Motion in Gases

• Created by: hjbh
• Created on: 06-10-18 11:18
• Particle Motion in Gases
• Relation to Temperature
• increase the temperature of a gas, you transfer energy into the kinetic energy stores of its particles
• the higher the temperature, the higher the average energy
• so as you increase the temperature of a gas,the average speed of its particles increases
• Relation to Pressure
• gas particles move at high  speeds          --->collide into each other--->they exert a force on it
• in a sealed container, the outward gas pressure is the total force exerted by all the particles in the gas on a unit area of the container walls
• faster particles and more frequent collisions lead to increase in net force and gas pressure
• increasing temperature will increase speed and pressure
• if temperature is constant, increasing the volume of gas means particles get spread out and hit the walls of the container less
• gas pressure decreases
• pressure and volume are inversely proportional.
• pV=constant
• Change in Pressure Causes Change in Volume
• if a container can easily change its size, then any change in these pressures will cause the container to compress or expand due to overall force