Temperature is a measure of the average kinetic energy of an object. This is proportional to how quickly the particles move.
Solids.
Because they: * Have mass * Have a speed
energy
In solids, heat is the energy of vibrating molecules or atoms; the higher the temperature, the greater the vibration. And when molecules or atoms vibrate more, there will be more space between them.
The atoms speed up building up kenetic energy which forces them apart and that is what turns the liquid into a gas
A particle may travel at a faster speed or its component atoms or molecules may vibrate more vigorously.
The measurement of the energy or heat in matter involves measurement of average speed of atoms and molecules.
Whatever it is, gas, vapor, liquid, solid - the higher the temperature, the higher is the local agitation/speed of the molecules/atoms.
Whatever it is, gas, vapor, liquid, solid - the higher the temperature, the higher is the local agitation/speed of the molecules/atoms.
The speed doesn't necessarily determine the permeability, but the size does. Smaller molecules such as O2 can easily enter the cell while CO2 leaves the cell. There are other criteria that also determines whether a molecule can pass through the plasma membrane such as its solubility. Fat soluble molecules such as steroids can easily pass through the membrane.
Actuator speed is determined by:
Generally speaking, atoms slow down when cold and speed up when warm.