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State an exception to the claim that all substances expand when heated?
Wiki User
∙ 10y ago
Ice gets smaller, and the melt water does too until it warms to 4 0C. But rubber is particularly importand because heating makes it smaller. This is why engine accessory belts squeal when cold, then they warm up and shrink. There are many useful characteristics of rubber that depend on this phenomenon.
Wiki User
∙ 16y ago
Wiki User
∙ 10y agoAnswer #1:
One well-known exception (there are probably others) is water: between 0 and 4
degrees Celsius it will contract when heated.
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Answer #2: (#1 restated)
A sample of the peculiar substance with the molecular formula H2O contracts
when heated within a small range of temperatures near its melting point.
Consequently, and in contrast to virtually all others known, the solid form of
this substance floats in its liquid form. Moreover, if this unique substance did
not exhibit such unusual behavior, then life could not exist on Earth.
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What expands when heated?
metal is a solid that expands when heated also of course when liquids are heated and change state into a gas they expand but metal is cool because it expands before it changes state
Does a substance change density if it changes physically?
Depends on what you consider a physical change. Substances change their density when they change their state of matter. When the temperature rises, substances usually expand, wich leads to the density decreasing. When the temperature falls, substances contract, increasing the density. Exception would be water, as it shows an anomaly occurring near 273K
What happens to materials when they are heated?
Most materials expand when they are heated. If they are heated enough, they may change from solid to liquid, or from liquid to gaseous forms.
Change in state when sulphur is heated?
YES.
What happen to lift forks if heated?
When a fork is heated it may loose its temper what happens to the metal in this state?
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
What paraffin become when heated?
Paraffin wax melts into a liquid state when heated, but hardens again when cooled.
What expands when heated?
metal is a solid that expands when heated also of course when liquids are heated and change state into a gas they expand but metal is cool because it expands before it changes state
Wich state of matter expands the most when heated?
gas expand more than liquid and liquid expand more than solid.
Does a substance change density if it changes physically?
Depends on what you consider a physical change. Substances change their density when they change their state of matter. When the temperature rises, substances usually expand, wich leads to the density decreasing. When the temperature falls, substances contract, increasing the density. Exception would be water, as it shows an anomaly occurring near 273K
Why does water expand as it freezes unlike most substances so ice is less dense than water?
No because water doesn't expand when heated and when it is cooled it contracts then forms ice crystals which cause it to give the appearance that it has expanded
What are substances are made of atom?
All substances are made of atoms, except the substance that makes up a neutron star.
What is thermal expansion and contraction?
when your feet go in shoes and then your feet expand and contract so your shoes will not fit.
What happens to the length of a solid when heated?
The length of solid decreases because on heating he solid it is melt and comes in a liquid state Solids expand when heated due to their molecules moving faster. The only exception of which I know is water/ice. Like other compounds, water contracts as its temperature drops. However, after passing 4°C it expands as it continues to cool due to the alignment of the water molecules into crystals.
What are 2 solid substances that don't go through a liquid state when heated and go straight to gas?
Naphthalene and camphor the process is sublimation
Why most substances expand when they change from a solid to a liquid?
During the melting the structure of the material is destroyed and the liquid is a low oredered state of matter.
What are two ways to change the state of a substance?
Substances can change state, usually when they are heated or cooled. For example, liquid water turns into steam when it is heated enough, and it turns into ice when it is cooled enough. The closeness, arrangement and motion of the particles in a substance change when it changes state.
