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Instead of the precise value of the kinetic energy of a system, for example a gas, it is generally more useful to consider its average kinetic energy, since it is absolutely impossible to measure the velocities of all the molecules: <E_k>=1/2 m<v^2>, where <> denotes the mean of the quantity in brackets. More importantly, the average kinetic energy has a very important physical interpretation: it is proportional to the temperature of the system. Temperature itself can be defined as a measure of the kinetic component of the internal energy of a system: according to the equipartition theorem, each independent quadratic energy term corresponds to an average energy of 1/2 kT, where k is Boltzmann's constant; so, in three dimensions the mean kinetic energy of a molecule is 3/2 kT.

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What is the measure of the average kinetic energy of the particals of a substance?

The measure of the average kinetic energy of the particles of a substance is its temperature. Temperature is a reflection of the average kinetic energy of the particles in the substance. The higher the temperature, the higher the average kinetic energy of the particles.


What term refers to the average kinetic energy of the particles of a substance?

Temperature refers to the average kinetic energy of a suubstance. The higher the average kinetic energy, the higher the temperature.


The measure of the average kinetic energy of a group of molecules?

The measure of the average kinetic energy of a group of molecules is expressed as temperature. As temperature increases, molecules move faster and their kinetic energy increases. This average kinetic energy is directly related to the temperature of the system.


What thing we measure when want to determine the average kinetic energy?

We measure the temperature of a substance to determine its average kinetic energy. The temperature is a measure of the average kinetic energy of the particles in the substance. Higher temperatures indicate higher average kinetic energy.


Explain the difference between total and average molecular kinetic energy of gas contained in a box?

Average Kinetic Energy is determined by the temperate of the gas. The higher the temperature, the higher the average kinetic energy of the gas molecules.Total Kinetic Energy is the average kinetic energy multiplied by the mass - the number of gas molecules in the box.- DENNIS LAM

Related Questions

What is measure the average kinetic energy of particles?

The average kinetic energy of particles is temperature.


The kinetic energy of a substance is the what kinetic energy of its particles?

The kinetic energy of a substance is the average kinetic energy of its particles.


What is the measure of the average kinetic energy of the particals of a substance?

The measure of the average kinetic energy of the particles of a substance is its temperature. Temperature is a reflection of the average kinetic energy of the particles in the substance. The higher the temperature, the higher the average kinetic energy of the particles.


What term refers to the average kinetic energy of the particles of a substance?

Temperature refers to the average kinetic energy of a suubstance. The higher the average kinetic energy, the higher the temperature.


The measure of the average kinetic energy of a group of molecules?

The measure of the average kinetic energy of a group of molecules is expressed as temperature. As temperature increases, molecules move faster and their kinetic energy increases. This average kinetic energy is directly related to the temperature of the system.


What thing we measure when want to determine the average kinetic energy?

We measure the temperature of a substance to determine its average kinetic energy. The temperature is a measure of the average kinetic energy of the particles in the substance. Higher temperatures indicate higher average kinetic energy.


How are temperature and kinetic energy related to each other?

Temperature is a measure of the average kinetic energy of the particles in a substance. As the temperature of a substance increases, the average kinetic energy of its particles also increases. Conversely, as the temperature decreases, the average kinetic energy of the particles decreases.


Explain the difference between total and average molecular kinetic energy of gas contained in a box?

Average Kinetic Energy is determined by the temperate of the gas. The higher the temperature, the higher the average kinetic energy of the gas molecules.Total Kinetic Energy is the average kinetic energy multiplied by the mass - the number of gas molecules in the box.- DENNIS LAM


What is the measure of the objects average kinetic energy?

The average kinetic energy of an object is directly proportional to its temperature, which is a measure of the average kinetic energy of its particles. The formula for calculating average kinetic energy is 1/2 times mass times velocity squared. It is a measure of the object's movement energy.


Which room would have the highest average kinetic energy?

The room with the highest temperature would have the highest average kinetic energy, as temperature is a measure of the average kinetic energy of particles in a substance.


What is the measurement of the average kinetic energy of the molecules of a substance?

temperature is the average kinetic energy of a particle


What is the measure of average kinetic energy?

The average kinetic energy of atomic and molecular particles is measured as temperature.