what is average kinetic energy?

Kinetic energy for a single molecule is

Ek=(1/2)mv^2 [m = molecular mass, v = molecular velocity]
The average of all the individual molecular kinetic energies is what you are asking for.
The temperature of a substance is proportional to the average molecular kinetic energy:
(1/2)mv^2 = kT

thanks for all your time and help!!

Average kinetic energy (KE) is a measure of the average energy possessed by a moving object due to its motion. It is defined as the total kinetic energy of the object divided by the number of particles or molecules in the system.

To calculate the average kinetic energy, you need to know the mass and velocity of each particle or molecule in the system. The formula for calculating kinetic energy is given by KE = (1/2) mv^2, where m is the mass and v is the velocity of the particle.

To find the average kinetic energy, follow these steps:
1. Determine the mass and velocity of each particle. This might involve measuring or obtaining this information from the given problem or situation.
2. Calculate the kinetic energy of each particle using the formula KE = (1/2) mv^2.
3. Add up the kinetic energies of all the particles in the system to get the total kinetic energy.
4. Divide the total kinetic energy by the number of particles to calculate the average kinetic energy. This can be represented as KE_avg = (total KE) / (number of particles).

It is important to note that temperature, which is a measure of the average kinetic energy of particles in a substance, is closely related to the average kinetic energy. The average kinetic energy of a sample of particles is directly proportional to its temperature.