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Do any matter expand when cooled and contract when heated?
Sort of. In the temperature range of 0-4 Degrees Celsius water contracts when heated and expands when cooled. Outside of this temperature range it behaves normally.
What changes do you think when water heated and cooled?
When water is heated, the molecules gain energy and move more quickly, causing the water to expand and eventually turn into steam. When water is cooled, the molecules lose energy and move more slowly, causing the water to contract and eventually freeze into ice.
What TD is used to determine the condenser performance of a water cooled condenser?
The approach temperature difference (ATD) is used to determine the condenser performance of a water-cooled condenser. It is the temperature difference between the refrigerant condensing temperature and the cooling water inlet temperature. A lower ATD indicates better performance and efficiency of the condenser.
How does an air cooled chiller work?
The air cooling of a chiller signifies , the cooling of radiator. in a chiller the compressor compressors the gas which on expansion cools in side Copper tubes causing the chilling effect. The refrigerants get heated up when compressed in a compressor. this heated refrigerant is cooled by blowing air in air cooled chillers. There are also water cooled chillers.
Why does a can collapse when heated and put in water?
A heated can has under gone superficial (areal) expansion and when cooled suddenly by immersing in water "shrinks" in a very "haphazard" way leading to collapse. Now the forces at action are thermal- the so called thermal stresses. Now there is another example of how a can could collapse. Water is poured into a can and and heated so that copious steam formed could escape through an opening and then after sometime this opening is closed tightly and the can is "bathed" in cold water. The can collapses. The forces unleashed are different in this case!
What changes take when water is heated or cooled?
what changes take place when water is heated or cooled
What changes takes place when water is heated or cooled?
what changes take place when water is heated or cooled
What phiscal change does water go throgh when it heated or cooled?
you tell me
Do any matter expand when cooled and contract when heated?
Sort of. In the temperature range of 0-4 Degrees Celsius water contracts when heated and expands when cooled. Outside of this temperature range it behaves normally.
What changes do you think when water heated and cooled?
When water is heated, the molecules gain energy and move more quickly, causing the water to expand and eventually turn into steam. When water is cooled, the molecules lose energy and move more slowly, causing the water to contract and eventually freeze into ice.
Why does water change into a solid when it is heated?
Water changes into a solid, ice, when it is cooled, not heated. This is because the cooling causes the water molecules to slow down and come closer together, forming a rigid structure. This process is called solidification or freezing.
Why do rocks get heated and cooled faster than water?
Because they are more hollow.
How does water changefrom one state to another?
Water changes from one state to another by being heated or cooled
Does Water have to be heated in order to move from a gaseous to a liquid state.?
No; water (as gas) must be cooled to become a liquid - this change is called condensation..
Does heated water harm a plants growth?
Yes, hot water or boiling water will kill or damage plant tissue and could result in death, even if this is applied to the soil. Once the boiled (or heated) water has cooled it can be used to water the plants with no side effects
How is the can crushing experiment explained?
The can crushing experiment is explained by the principle of thermal expansion. When a small amount of water is heated inside the can and then rapidly cooled by placing it in cold water, the steam inside the can condenses, creating a vacuum that crushes the can due to the difference in pressure inside and outside the can.
What is the unusual behaviour of water when cooled below 4ºC?
Most matter contracts as it gets colder. Water is one of the few substance that expands (from 4 degrees Centigrade to 0).
