Randomness kinetic energy

The internal energy of all gases depends on the temperature of the gas. For an ideal gas, the internal energy depends only on the temperature. The temperature is most appropriately measured on the Kelvin scale. The contribution to the internal energy from the random kinetic energy of the molecules in the gas is called thermal energy. 

Thermal energy is the sum of all the random kinetic energies of the molecules in a substance, that is, the energy in their motions. The higher the temperature, the greater the thermal energy. On the Kelvin temperature scale, thermal energy is directly proportional to temperature. 

Thermal energy (associated with temperature, random kinetic energy of masses, i.e. random motion)... 

Experience shows that the rate of reaction is influenced by the composition and the energy of the material. By energy we mean the temperature (random kinetic energy of the molecules), the light intensity within the system (this may affect... 

Heat is the energy transferred between objects that are at different temperatures. Temperature is a measure of the average random kinetic energy of the particles in an object. 

For a 10°C rise in temperature, the average random kinetic energy of molecules increases slightly, but the fraction of molecules that have very high energy (>Ea) increases greatly, as shown by the shaded areas to the right. 

A is correct. Heating the solid will raise its temperature which will eventually melt it. Compressing the solid will raise the pressure on the solid which will most likely keep it a solid. A few substances like water will melt under pressure, but for most solids, pressure changes a liquid to a solid. It is the random kinetic energy of the molecules of a solid and not the uniform translational motion kinetic energy of the solid that increases its temperature and would make it melt. 

Considering that surface tension is the result of cohesive forces between molecules of the same liquid, it would not be surprising to observe that by increasing the temperature (in other words, by increasing the random kinetic energy of the liquid molecules), the surface tension is decreased. In fact, at the critical temperature, this kinetic energy is enough to break all the cohesive bonds between the liquid molecules and separate the molecules to form a gas. 

AS Explain how potential energy changes for this process. Explain how random kinetic energy changes during the process. What types of experiments can be carried out to determine whether a reaction is spontaneous Does spontaneity have any relationship to the final equilibrium position of a reaction Explain. 

The random kinetic energy of particles in matter can be increased in a number of ways. For example, solar energy from the Sun being absorbed by sea water, striking a piece of metal with a hammer many times, compressing the air in a tyre pump for a bicycle or simply using a flame. 

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