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When water freezes it sets up a crystal structure which aligns the hydrogen atoms of one molecule with the lone electron pairs on nearby oxygen atoms in other molecules. This arrangement as an optimal distance which determines the density of ice. This packing structure has an 'energy balance' associated with it that is a compromise between the attraction and repulsion of all involved atoms and their configurations with the water molecule.
When heat is added to ice the energy of the thermal vibrations of the individual molecules exceeds the repulsion energy between molecules but not their attractive energy. As I said before the packing structure is a balance of many factors and not all these factors have the same energy threshold. Therefore when ice melts it is easier for water to contract (become denser) then it is for it to expand. Once the temperature exceeds 4'C however the thermal energy exceeds all inter-molecular forces and 'ordinary' thermal expansion occurs.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoEvaporation. If the temperature is quite hot, the water evaporates, which leads to decrease in the amount of water.
Wiki User
∙ 12y agoWell, when any substance is cold, it shrinks/decreases, and when it warms up, it enlargers/increases.
Wiki User
∙ 11y agoat 4c water has maxmium density but at any centigrades it will have less dinsity other than 4
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Does water expand when warmed?
Yes, like most substances - above 4 degrees centigrade. From 0 to 4 degrees centigrade, the volume of water will actually decrease while the temperature increases.
Is the temperature at which water boils at the seashore is less or greater than that at a Himalayan peak?
The temperature at witch water boils at the sea shore is 100 degree centigrade and Himalayan peak is is about 70 degree centigrade. ( In pressure cooker at about 120 degree centigrade. )
How much heat is required to raise the temperature of 15 kg of water from 22 degree centigrade to 35 degree centigrade?
195 joule..
How much energy is required to raise the temperature of one liter of water 1 degree centigrade?
The specific heat of water is 4.179 Joules per gram per degree Centigrade. The density of water is 1 gram per cubic centimeter, so one liter is 1000 grams. This means it takes 4179 Joules to raise one liter one degree Centigrade.
At what temperature does water have its lowest volume?
About 4 degrees Centigrade.About 4 degrees Centigrade.About 4 degrees Centigrade.About 4 degrees Centigrade.
Does water expand when warmed?
Yes, like most substances - above 4 degrees centigrade. From 0 to 4 degrees centigrade, the volume of water will actually decrease while the temperature increases.
What 2 ways can you change density of water?
By cooling it below 4 degrees centigrade whereupon its density will decrease. By heating it above 4 degrees centigrade whereupon its density will decrease. Water is at its densest at about 4 degrees centigrade.
100 g of water at 20 degree centigrade is mixed with 100 g of water at 5 degree centegrade the temperature of mixture will be?
15 degree centigrade
Is the temperature at which water boils at the seashore is less or greater than that at a Himalayan peak?
The temperature at witch water boils at the sea shore is 100 degree centigrade and Himalayan peak is is about 70 degree centigrade. ( In pressure cooker at about 120 degree centigrade. )
How much heat is required to raise the temperature of 15 kg of water from 22 degree centigrade to 35 degree centigrade?
195 joule..
When water at zero degree Celsius is heated its volume?
Its volume decreases from 0° to 4°, and then increases from 4° to 10°.
What degree does it take to freeze water?
At Zero degrees centigrade for pure water.
What is the boiling point of 2 liter of water in centigrade?
At 1 atmosphere of pressure, the boiling point of water is 100 degrees Celsius (Centigrade). The volume of water does not matter.
What is Anomalous expansion of water?
The expansion of water when it is cooled from four degree centigrade to zero degree centigrade is known as "anomalous expansion of water." The unusual behaviour of water, when it expands below 4° celsius to 0° is called anmalus expansion of water.
What integer represents the boiling point of water in degree centigrade?
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The scale that water boils at 100 degree and freezes at 0 degree?
Celsius (used to be called 'Centigrade')
Why is the centigrade scale named the centigrade scale?
It is based on units of ten, and the boiling point of water on the centigrade scale is 100 degrees. That's what centigrade means: Centi=100. Gradus=step or degree.
