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What is the changes in kinetic energy as a substance is heated to its melting point?
The kinetic energy increase.
How do changes in energy and temperature influence chemical changes?
The reaction rate is dependent on temperature (increasing the temperature the reaction rate increase) and activation energy.
Do changes in velocity and mass have the same effect on kinetic energy?
Kinetic energy is equal to one half the mass times the square of the velocity. Thus, changes in velocity and mass do not have the same effect on kinetic energy. If you increase the mass by a factor of 10 at the same velocity, you increase the kinetic energy by a factor of 10. However, if you increase the velocity by a factor of 10 at the same mass, you increase the kinetic energy by a factor of 100.
What happens to molecular energy when a substance changes states?
The molecular energy will usually increase or decrease, depending on the exact situation.
What happens to a substance as its thermal energy increases?
As thermal energy increases, the substance's particles move faster, leading to an increase in temperature. Eventually, the substance may undergo a phase change (e.g., melting or boiling) or undergo chemical reactions if the increase in energy is significant enough.
Identify to changes of state that require energy to be used and two changes of state that require the release of energy?
Changes of state that require energy: melting (solid to liquid) and vaporization (liquid to gas). Changes of state that release energy: freezing (liquid to solid) and condensation (gas to liquid).
What all changes of the state of matter require?
heat energy
When you increase energy in one form what happens to the energy in the other forms?
it changes form
What is the changes in kinetic energy as a substance is heated to its melting point?
The kinetic energy increase.
What are two changes in state that require the release of latent potential energy?
Two changes in state that require the release of latent potential energy are condensation, where gas turns into liquid and releases energy, and freezing, where liquid turns into solid and releases energy.
What are the types of phases change that require energy?
The types of phase changes that require energy are melting (solid to liquid), sublimation (solid to gas), and evaporation (liquid to gas). These phase changes require energy input to break the intermolecular forces holding the particles together in a particular phase.
What are changes of state that require energy?
Melting, vaporization, and sublimation are changes of state that require energy. During these processes, energy is used to overcome intermolecular forces holding the particles together so that they can move more freely.
What are The three phase changes that require energy to be removed are?
The three phase changes that require energy to be removed are condensation, freezing, and deposition. During condensation, gas transitions to liquid, releasing energy. Freezing occurs when a liquid changes to a solid, also releasing energy. Deposition is the direct transition from gas to solid, which releases energy as well.
What changes of state require energy?
Sublimation, melting, and vaporization are three changes of state which require energy.
How do changes in energy and temperature influence chemical changes?
The reaction rate is dependent on temperature (increasing the temperature the reaction rate increase) and activation energy.
Do changes in velocity and mass have the same effect on kinetic energy?
Kinetic energy is equal to one half the mass times the square of the velocity. Thus, changes in velocity and mass do not have the same effect on kinetic energy. If you increase the mass by a factor of 10 at the same velocity, you increase the kinetic energy by a factor of 10. However, if you increase the velocity by a factor of 10 at the same mass, you increase the kinetic energy by a factor of 100.
Is more energy enters a system then leaves it just causes a what?
If more energy enters a system than leaves it, it causes an increase in the internal energy of the system. This could lead to an increase in temperature, changes in pressure, or other internal changes depending on the nature of the system.
