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Why is a candle melting a chemical change?
Melting is accompanied by burning and thermal degradation - two chemical reactions.
True or false the state of a substance depends on the amount of thermal energy it possesses?
True. The state of a substance, such as solid, liquid, or gas, depends on the amount of thermal energy it possesses. Increasing thermal energy can change the state of a substance, such as melting a solid into a liquid or evaporating a liquid into a gas.
During a temperature change what is happening to the substance?
A change of phase: melting, evaporation, liquefaction or chemical changes as thermal dehydration, thermal decomposition, oxydation, etc.
Is heat of fusion extensive or intensive?
Heat of fusion is an intensive property because it does not depend on the amount of substance present. It is the amount of heat required to change one gram of a substance from solid to liquid at its melting point.
Does the melting temperature of a solid change with the amount of material?
i do not care what you stupid idiots want to know
Why is a candle melting a chemical change?
Melting is accompanied by burning and thermal degradation - two chemical reactions.
What is the thermal energy of melting?
The thermal energy of melting, also known as the heat of fusion, is the amount of energy required to change a substance from a solid to a liquid at its melting point without changing its temperature. This energy is used to break the bonds between the molecules in the solid to allow the particles to move more freely in the liquid state.
True or false the state of a substance depends on the amount of thermal energy it possesses?
True. The state of a substance, such as solid, liquid, or gas, depends on the amount of thermal energy it possesses. Increasing thermal energy can change the state of a substance, such as melting a solid into a liquid or evaporating a liquid into a gas.
What change when the amount of a substance change?
total thermal energy
During a temperature change what is happening to the substance?
A change of phase: melting, evaporation, liquefaction or chemical changes as thermal dehydration, thermal decomposition, oxydation, etc.
Is scorching butter a physical or chemical change?
Melting is a physical change; but above a temperature the thermal decomposition of butter begin - this is a chemical change.
Does the amount of substance change its thermal energy?
Yes, the more substance you have, the slower the temperature change.
Scorching butter chemical or physical change?
Melting of butter is a physical change, a change of phase; but the brown color, at high temperature, is an indication of thermal decomposition - this ia a chemical change (change of composition).
What energy is involved in ice changing to liguid?
Thermal energy, melting of ice is a physical change of phase.
What is the relationship between specific heat and latent heat in the context of thermal energy transfer?
Specific heat and latent heat are both properties of a substance that determine how it absorbs or releases thermal energy. Specific heat refers to the amount of heat required to raise the temperature of a substance by a certain amount, while latent heat is the amount of heat needed to change the state of a substance without a change in temperature. In thermal energy transfer, specific heat affects the temperature change of a substance, while latent heat is involved in phase changes such as melting or boiling.
Which of the following changes of state releases thermal energy A. Melting C. condensation B. Sublimation D. evaportion?
A. Melting is the change of state that releases thermal energy. When a substance melts, it absorbs thermal energy from its surroundings to overcome the intermolecular forces holding its particles together.
What is a physical change in matter caused by loss or gain of thermal energy?
A physical change in matter caused by gain or loss of thermal energy is a change in state, such as melting or freezing. This occurs when the temperature of the substance reaches its melting or freezing point, causing it to transition between a solid, liquid, or gas state without altering its chemical composition.
