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When you heat a material, you cause the molecules to vibrate with more kinetic energy. So think of the Mercury as a group of people standing as close to each other as possible. If you add heat to this group (which can be represented by the people starting to wiggle their bodies and flail their arms) the group will start to take up more and more space depending on how much extra wiggling they do. This is a good comparison to the molecules of mercury. As they are heated, they vibrate with larger oscillations. This will mean they need more room to "wiggle", hence the mercury will expand.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoIts not only mercury, all substances expand with heat. This is because, when heat is provided to a substance, it is actually supplied energy. This energy breaks the weak van der waals forces which bind two molecules to each other.
Wiki User
∙ 11y agoMercury expands when it is heated.
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Why does the liquid expand in a thermometer when it gets hotter?
In a thermometer is a liquid metal called Mercury, so the liquid expands when it is heated up.
Why do solids expand when heated even though their mass does not change?
BECAUSE the moncules are heated they expand because there gay and expand
What expands when it is heated?
Most substances expand when heated.
Does steel expand or compress when heated?
The steel would EXPAND
Does matter expand or contract when heated up?
Matter expands when it is heated.
What liquid expands when heated?
All liquids expand when heated. e.g. Mercury in a thermometer. One exception may be water when heated form 0 to 4 degrees Celsius.
What is the principle of Mercury?
Mercury thermometers are based on the fact that materials (in this case, the liquid mercury) expand when heated.Mercury thermometers are based on the fact that materials (in this case, the liquid mercury) expand when heated.Mercury thermometers are based on the fact that materials (in this case, the liquid mercury) expand when heated.Mercury thermometers are based on the fact that materials (in this case, the liquid mercury) expand when heated.
Oil expand or contract when heated?
Oil does expand when heated and contracts when cooled.
Why does the liquid expand in a thermometer when it gets hotter?
In a thermometer is a liquid metal called Mercury, so the liquid expands when it is heated up.
Is liquid expand when heated?
Yes, in general a liquid will expand when heated. They contract when they are cooled.
Why do solids expand when heated even though their mass does not change?
BECAUSE the moncules are heated they expand because there gay and expand
Does matter expand or contract when it is heated?
Expand
What happens to matter when heated?
When matter is heated it will expand
What expands when its heated?
Most substances expand when heated.
What expands when it is heated?
Most substances expand when heated.
Do water atoms expand or multiply when heated?
expand
Does matter expand or contract when it's heated?
Expand
