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Why does a substance change states?
A change of state is accompanied by a change in an energy level, so it can be caused when energy is put into a substance, or taken out. As an example, when changing state from liquid to gas, that means that the individual particles have so much energy (or equivalently, move so fast) that they can escape from the attractive forces of other particles.
Does temperature contain any particles?
Temperature itself does not contain particles. It is a measure of the average kinetic energy of particles in a substance. So, while temperature is related to the motion of particles, it does not physically contain any particles itself.
Why heat is released by the particles of a liquid substance when it becomes a solid?
temperature has to be low so it can freeze. it has to release internal energy so it can be stable
Has thermal energy been transfered into or out of a substance if the average kinetic energy changes?
Temperature is a measure of the average KE of the PARTICLES of a substance. So if the temperature changes, ave KE changes, thus thermal energy will have been transferred.
What happens to an objects temperature if the kinetic energy of its particles decreases?
If the kinetic energy of an object's particles decreases, its temperature will decrease as well. Temperature is a measure of the average kinetic energy of the particles in a substance, so a decrease in kinetic energy means a decrease in temperature.
What Explain what happens to the average kinetic energy, thermal energy, and temperature of a substance when the particles in the substance slow down.?
The particles in a substance slow down when the average kinetic energy of the particles decreases. As the average kinetic energy decreases, the internal energy decreases, and so the thermal energy decreases. As the thermal energy of the substance decreases, the temperature decreases.
How is kinetic energy related to temperature?
Kinetic energy is related to temperature because temperature is a measure of the average kinetic energy of the particles in a substance. As the kinetic energy of particles increases, so does the temperature of the substance.
When a substance is heated its temperature increases. What happens to the energy of its particles?
The energy of its particles increases, so as the particles speed up move faster causing its heating up.
Why does a substance change?
A change of state is accompanied by a change in an energy level, so it can be caused when energy is put into a substance, or taken out. As an example, when changing state from liquid to gas, that means that the individual particles have so much energy (or equivalently, move so fast) that they can escape from the attractive forces of other particles.
An increase in the average kinetic energy of a sample of copper atoms occurs with an increase in what?
An increase in the average kinetic energy of a sample of copper atoms occurs with an increase in temperature. Temperature is a measure of the average kinetic energy of the particles in a substance, so as temperature increases, the particles (such as copper atoms) gain more energy and move faster, which increases their kinetic energy.
How does a substance 's temperature change when the average kinetic energy of it's particle increases?
As the average kinetic energy of the particles in a substance increases, the temperature of the substance also increases. This is because temperature is a measure of the average kinetic energy of the particles in a substance. So, when the average kinetic energy increases, the temperature increases as well.
How does solar energy goes from electromagnetic energy to thermal energy?
When photons (light particles) are absorbed by a substance, the energy of the photon is converted into kinetic energy among the atoms within the substance. As the atomic kinetic energy (motion) within a substance rises, so too does the temperature (thermal energy) of that substance.
Why does substance change states?
A change of state is accompanied by a change in an energy level, so it can be caused when energy is put into a substance, or taken out. As an example, when changing state from liquid to gas, that means that the individual particles have so much energy (or equivalently, move so fast) that they can escape from the attractive forces of other particles.
Why does a substance change states?
A change of state is accompanied by a change in an energy level, so it can be caused when energy is put into a substance, or taken out. As an example, when changing state from liquid to gas, that means that the individual particles have so much energy (or equivalently, move so fast) that they can escape from the attractive forces of other particles.
Is temperature a form of kinetic or potential energy?
Temperature is a measure of the average kinetic energy of the particles in a substance, so it is a form of kinetic energy.
When a substance is heated do the particles get larger?
When a substance is heated, the particles do not get larger but they vibrate faster and spread out more, causing the substance to expand. This expansion is due to the increase in kinetic energy of the particles, not their actual size.
What is the temperature in a substance with a large amount of thermal energy?
The temperature of a substance with a large amount of thermal energy will be higher compared to a substance with lower thermal energy. Thermal energy is directly related to temperature, so as the amount of thermal energy increases, the average kinetic energy of the particles in the substance increases, leading to a higher temperature.
