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When a substance changes state what happens to its thermal energy?
Wiki User
∙ 10y ago
Changes the temperature of the substance
Wiki User
∙ 10y ago
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Type of energy that depends on how fast the molecules in a substance are moving?
Kinetic energy is the type of energy that depends on how fast the molecules in a substance are moving.
Explain Why physical changes can be reversed but chemical changes cannot?
Physical changes are generally easy to reverse because NO ENERGY is produced by the substance.A Chemical change cannot be reversed because ENERGY is produced by the substance forming a new substance.
How are states of matter and changes in energy related?
When thermal energy is added or removed, the state of matter changes to another eg. solid becomes liquid and liquid becomes gas.
The addition or loss of thermal energy changes the arrangement of the particles during what?
a change of state
How is heat different from thermal energy?
There is no particular difference between heat and thermal energy. Heat is a form of thermal energy. Since thermal energy is energy from heat, heat and thermal energy are basically the same thing.
What happens to a substance as its thermal energy increases?
if temperature changes that means there is thermal energy in a substance
What changes when the amount of a substance changes?
total thermal energy
What happens to the thermal energy of a substance as its temperature increases?
When a sample of a substance absorbs thermal energy, its temperature rises.
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 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.
What happens when energy changes form?
When energy changes form the molecules in the object become more or less densly packed. Thermal energy is also ALWAYS produced.
What happens to the molecules in a substance when thermal energy is removed?
It's vibrates and then melts
How does an increase in total energy of the particles in a substance affect the thermal energy of the substance?
How does an increase in the total energy of the particles in a substance affect the thermal energy of the substance.
What happens to the motion of molecules of matter when an object gains or loses thermal energy?
Increasing temperature means increased kinetic energy on the atomic or molecular level. Temperature of a given substance is the average kinetic energy of the particles of which that substance is composed.
What happens when you remove thermal energy from a gas?
It turns into a liquid. Just like if you were to remove thermal energy from a substance the atoms will slow down.
What happens to the thermal energy of a substance during a physical change of state?
it will increase or decrease depending on the states. from solid --> liquid or liquid --> gas it is positive and endothermic, and thermal energy is increasing from liquid --> solid or gas --> liquid it is negative and exothermic, and thermal energy is decreasing
What happens when a substance change states?
When a substance changes state, Energy within the substance is gained or lost, but the composition is unchanged.
