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Why do solids expand when heated even though their mass does not change?
Wiki User
∙ 13y ago
BECAUSE the moncules are heated they expand because there gay and expand
Wiki User
∙ 13y ago
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When water is heated does it expand or contract?
No. The only change is the change from liquid to gas and all that happens is the particles in the water start to move faster and start to separate from one another. One particle is lighter than three and because it is hot it is less dense than air so it rises. :)
Are particles closer together in solids or gases?
I think solids... I'm not 100 % sure though.
How does heat travel though solids?
by conduction principle
Why is thermal expansion not visible in solids?
Thermal expansion in solids is normally very small - typically around one part in one hundred thousand for a one Kelvin temperature change. That means that a one metre long length of aluminium, for example, will only change size by 0.23mm when heated by 10kelvin - effectively invisible to the human eye. Thermal expansion, though can be visible to the unaided eye if the object is large enough - a kilometer long bridge, for example, may vary in length by as much as a metre or more between summer and winter, depending upon the seasonal temperature change, and will have expansion joints that allow sections of the bridge to expand into one another without changing the overall length of the bridge, and risking damage to the structure. If you were to look at these joints in winter and then in summer, you would see the difference that thermal expansion makes.
Do wires expand?
Yes as though during the hot days the wires due to the hot heat that make it expand.
Do most solids expand when cooled?
Generally speaking, substances have the least amount of surface area as a solid, as they are heated they form a liquid and expand, as this is heated it forms a gas and expands more. *Assuming pressure is constant **Water is the only substance to expand as it freezes
When water is heated does it expand or contract?
No. The only change is the change from liquid to gas and all that happens is the particles in the water start to move faster and start to separate from one another. One particle is lighter than three and because it is hot it is less dense than air so it rises. :)
Does heated water expand?
i believe heat does expand... I'm not sure though. i think the particles separate to have room to vibrate. that causes the heat to expand. :)
Does particles in gases expand when heated?
This is because when heat is applied to particles, they gain energy, therefore they travel faster and space out. The volume will increase though the density will decrease. So matter will always expand when exposed to heat.
Are particles closer together in solids or gases?
I think solids... I'm not 100 % sure though.
How does heat travel though solids?
by conduction principle
Why is thermal expansion not visible in solids?
Thermal expansion in solids is normally very small - typically around one part in one hundred thousand for a one Kelvin temperature change. That means that a one metre long length of aluminium, for example, will only change size by 0.23mm when heated by 10kelvin - effectively invisible to the human eye. Thermal expansion, though can be visible to the unaided eye if the object is large enough - a kilometer long bridge, for example, may vary in length by as much as a metre or more between summer and winter, depending upon the seasonal temperature change, and will have expansion joints that allow sections of the bridge to expand into one another without changing the overall length of the bridge, and risking damage to the structure. If you were to look at these joints in winter and then in summer, you would see the difference that thermal expansion makes.
Is a change of liquid to liquid a chemical change or physical change?
If a solid appears after mixing two liquids, it is a chemical change.
Do wires expand?
Yes as though during the hot days the wires due to the hot heat that make it expand.
Why must beaker cooled before adding watrer?
Glass expands when heated and contracts when cooled; however, if it is cooled or heated too quickly, it is likely that it will not contract or expand at a uniform rate, and this produces stress in parts of the glass, which can cause it to crack or even explode if the temperature change is even more abrupt. Because of this, lab glassware is often made of boron silicate glass, which is much more resistant to abrupt temperature changes than regular glass. Keep in mind though, that it is still vulnerable to the previously stated effect, though less than regular glass.
Can light waves travel though solids?
Light can propagate through some solids, but not all. Some transparent solids: Ice, glass, clear plastic, quartz, diamond Some opaque solids: Rock, wood, copper, gold, meat-loaf
Is it true that sound travels through solids but not though liquids and gases?
secret
