What happens to the speed of particles as temperature of a gas increases?
Physics · Middle School · Wed Jan 13 2021
Answered on
As the temperature of a gas increases, the average speed of its particles also increases. This relationship is described by the kinetic theory of gases, which states that the kinetic energy of gas particles is directly proportional to the temperature of the gas.
The kinetic energy (KE) of an individual gas particle is given by the equation:
KE=1/2MV2
where:
- m is the mass of the particle,
- v is its velocity.
According to the kinetic theory of gases, the average kinetic energy of gas particles is directly proportional to the absolute temperature of the gas. The relationship can be expressed by the equation:
Average Kinetic Energy∝Temperature
Average Kinetic Energy∝Temperature
As temperature increases, the average kinetic energy of the gas particles increases. Since kinetic energy is related to the square of the velocity, an increase in kinetic energy results in an increase in the average speed of the gas particles.