absolute zero, 0 °K, -273.15 °C, or −459.67 °F
The temperature of the substance would increase as the average energy of particle motion increases. Additionally, the pressure exerted by the particles on the walls of the container would also increase.
All matter has kinetic energy unless it is at absolute zero (-273degrees C). At this temperature this means that there is no movement of molecules which means there is no brownian motion.
The temperature is absolute zero, a minimum temperature of matter based on continually reduced molecular motion. (Although absolute zero cannot be attained, it is possible to get very very close, to about 170 billionths of a kelvin.) Absolute zero is approximately -273.15 °C
the kinetic energy of a particle depends on the movement of each particle;that is the mass of the particle and the velocity of each particle.the particles of each matter or substance has a different heat resistance. when the temperature exceeds the resistance of the particles the movement of the particles would increase drastically.therefore making the velocity more and the mass lesser............. KE=1/2*m*v*v so when the temperature increases the mass is reduced and the velocity increases.
The fact that the particles of matter are in continuous motion is a blessing in disguise. If matter particles did not move then if a harmful gas leaked, the vapours of the gas would remain stationary in a place. This would make that place more polluted and poisonous than its surroundings. Particle motion helps in allowing the gas to spread evenly over a large area and its poisonous effect gets very much diluted. Also due to particle motion the smell of something reaches our nostrils even if we are not close to the source of the smell. The particles of the smell of the matter diffuses with the air particles and spreads over a large area. Thus particle motion in matter is a blessing in disguise as its advantages are hardly not given much importance and remain unknown to most. But whether we know about it or not, motion of particles of matter play a vital role in our daily lives.
The general tendency is for the average speed of particles to increase as temperature increases.But please note that temperature can't be DEFINED simply as the average speed; it is more closely related to the average ENERGY per particle. And the energy for each particle depends on the SQUARE of the speed; but it also depends on the mass of the particle.
Atoms will not be able to move at Absolute Zero (Zero Kelvin), they would reach what is called zero-point energy, but as this is a theoretical limit and cannot be achieved, no one will ever know for sure.
If particles were to stop moving completely, all processes that depend on particle motion and interaction, such as chemical reactions, heat transfer, and electrical conductivity, would cease. This would result in a state of absolute zero temperature, where all molecular motion stops.
As the temperature is reduced, the motion of the molecules is also reduced.
If it were a solid at room temperature, then that would be the state of matter. However, hydrogen is NOT solid at room temperature. It is a gas and that would be the state of matter.
The particles on every state of matter are always in motion, and hence will have a specific amount of kinetic energy both related to their temperature and current state. Solids move less than liquids, liquids less than gasses, etc. At absolute zero, it's theorized that independant molecular movement within any state of matter would cease, and that matter would therefore have no kinetic energy other than being physically moved somewhere by an outside force.
The minimum stream velocity needed to keep a particle in motion can be estimated using the settling velocity equation. For a 10 cm diameter particle, the approximate minimum stream velocity would need to be around 0.03 m/s to keep it in motion. This value may vary depending on factors such as particle density and fluid properties.