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Most substances expand as their temperature increases. Water is actually an exception to this rule, since, below 4oC, water actually contracts as it warms (and expands as it cools). This is why ice floats, because it's less dense than water. This is a very unusual thing in the world of chemistry, and only a very few substances exhibit this property. It has something to do with the rigidity of the bonds between the atoms and molecules. I can't fully explain it, and truth be told, I don't even understand it 100%.
Nevertheless, above 4oC, water acts "normally", i.e., it expands as it warms. The warmer it gets, the more volume it takes up. The expansion is not very significant in terms of the total volume of water.
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∙ 12y ago
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What does thermal expansion of water mean and why is it relevant to the rising sea levels?
Thermal expansion relates to how things expand when they heat up and contract when they cool down. This also applies to the water in the ocean. The hotter it is, the more it expands, making sea levels rise.
What is the increase of the volume of a substance by the increase of temperature called?
This increase of volume is called expansion
What are the of objectives of thermal expansion in solids and liquids in everyday life?
one example of thermal expansion is when in the kitchen and you can not open a can of vegetable(example) you will put it in a pan of hot water and the water will push it off.
What is happening to substance undergoing thermal expansion?
the water separate everywhere
What is happening to a substance undergoing thermal expansion?
the water separate everywhere
Water expands as it freezes can you define a coefficient of volume expansion for the freezing force?
The coefficient of the thermal expansion of water is equal to .00021. Water expands by 9% of its volume when it freezes.
What is thermal expansion and explain its two types?
- Thermal expansion is the dimension modification of a material under heating. - Linear, volumetric and area thermal expansion are known and measured for materials.
Liquids expansion by heat?
Yes as friend Des Dichado pointed out liquids do have thermal expansion.
How does thermal expansion affect a bridge?
A bridge must have expansion gaps or else they will waver when they expand in warm temperatures. This is thermal expansion
The expansion of matter when it is heated is known as?
thermal expansion
What is the process of thermal expansion?
Thermal expansion is the tendency of matter to change in volume in response to a change in temperature.
What are the two types of thermal expansion?
Linear, volumetric and area thermal expansion are known and measured for materials.
