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Thermal Decomposition
Jimmy Mueller
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What change might be observed when a substance is heated?
How much it is heated. What has the heat done to the object ETC
When a substance is blank it gains thermal energy?
heated
What happen to a substance when it is heated?
The velocity of the atoms/molecules (that the substance is made of) increase.
What is the name of the substance formed when iron is heated?
ferrous oxide
When a substance is heated what happens in mass volume and weight?
Both the mass and weight remain unchanged. However; generally; the volume increases due to the thermal expansion of the substance when heated up.
What type of substance is heated by radiation?
Any substance that absorbs the radiation is heated by it.
How does the volume and density of a substance change when it is heated?
The volume of a substance increases when heated, causing a decrease in density.
What substance is heated with limestone to prodce cement?
its heated with something
When substance are heated they?
They expand
Does the volume of an object change if heated?
The volume of a substance increases when heated
When a substance is heated the particles do what?
accelerate
What is the name of the substance created when zinc is heated with sulphur?
The substance created when zinc is heated with sulphur is zinc sulfide.
What happens when a ferromagnetic substance is heated to high temperature?
At a specific high temperature, called Curie point, the ferromagnetism disappear.
Substance that yield oxygen when heated?
KClO3
What happens to a substance or object when it is heated?
It expands.
What is the necessary temperature for a liquid to change to a gas?
It is called the boiling point. It varies according to the substance being heated and the ambient pressure
What should be used to remove heated to heated objects?
When a substance is heated up, it emit heat radiation. In such way substance keep on losing heat energy. Thus a way that increase heat losing can lower heat of substance. Water can used as heat absorber.
