PROPERTY OF GAS: VOLUME
§ The molecules move
freely in random motion and fill up the whole space in the container.
§ The volume of the
gas is equal to the volume of container.
PROPERTY OF GAS: TEMPERATURE
§ The molecules are
in continuous random motion and have an average kinetic energy which is proportional
to the temperature.
PROPERTY OF GAS: GAS PRESSURE
§ The molecules are
in continuous random motion.
§ When a molecule
collides with a wall of the container and bounces back, there is a change in momentum
and a force is exerted on the wall.
§ The force per unit
area is the pressure of the gas.
BOYLE’S LAW
Boyle’s law states that for a fixed mass of gas, the pressure of the gas
is inversely proportional to its volume when the temperature is kept constant.
ABSOLUTE ZERO OF TEMPERATURE
The absolute zero of temperature is the lowest possible temperature
which is – 273 oC.
CHARLES’ LAW
Charles’ law states that for a fixed mass of gas, the volume of the gas
is directly proportional to its absolute temperature when its pressure is kept
constant.
PRESSURE LAW
Pressure law states that for a fixed mass of gas, the pressure of the gas
is directly proportional to its absolute temperature when its volume is kept
constant.
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