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The kettle is heated by heat energy that comes from burning the gas that contains potential chemical energy when it is piped in.
House gas contains carbon and hydrogen, which is burned using oxygen from the air in the room. The formation of new atomic bonds between carbon and oxygen, and between hydrogen and oxygen, produces the heat. The carbon dioxide and water vapour that are produced go into the atmosphere.
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∙ 9y ago
Neelo Ali
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What energy transfer takes place in a kettle?
the kettle boils and then the energy comes out as steam
What energy transformation takes place in a electric kettle?
eletri
Give two differences between evaporation and boiling?
Evaporation takes place at all temperatures but boiling at one particular temperature When saturated vapour pressure becomes equal to the atmospheric pressure boiling takes place but evaporation is not so
If 2000j of energy is input to the kettle how much energy is output from the kettle?
The total energy in the kettle system will be 2000J. However, the energy will be distributed different ways. Some will go into heating the water, some will go into changing the water into steam (which takes a LOT of energy), and some will be lost as radiant heat energy. The specifics depend on the kettle itself, and how much water you have in the kettle.Changing one milliliter of water by one degree requires 4.186 J of energy, but to convert it into steam requires 2259.36 J per ml
What energy transformations takes place when wood is burned?
Well the energy transformation that takes place when wood is burned is CHEMICAL ENERGY---> THERMAL ENERGY.
What energy transfer takes place in a kettle?
the kettle boils and then the energy comes out as steam
What energy transformation takes place in a electric kettle?
eletri
What energy change takes place in a kettle?
Electrical energy -> Heat energy -> Sound energy.
Compare and contrast between boiling and evaporation?
Evaporation takes place at any temperature but boiling takes place only at a substance's boiling point.
Why does a kettle have a 13 amp fuse and a DVD player only has a 3 amp fuse?
Because boiling water takes a lot more energy than reading and spinning a dvd disc.
Why putting less water in kettle will help use less energy?
because it takes less time for the water to boil. I f you put more water in the kettle it will take a longer time for it to boil which takes in more energy
Does boiling require the removal of energy?
No. It takes energy to boil a substance.
What are the 2 kinds of vaporization?
The vaporization that takes place below the surface of liquid is called boiling. The other one that takes place at the surface of a liquid is called evaporation
Is boiling of water am endothermic or exothermic?
Yes boiling water is endothermic because you are supplying the energy to the water molecules. (Or in most instances the kettle is supplying the energy to the water, still endothermic), the water doesn't just spontaneously boil at 25C and release heat energy, it takes you putting in massive energy to get it to boil.
How is the steam used to produce electricity?
A 300 grams of water takes about 90 seconds to boil in a 2 kW kettle, so that is 2000 watts x 90 seconds which is 180,000 Joules of energy. But to convert that water completely into steam requires an extra 300x550x4.2 Joules, which is nearly 700,000 Joules. So converting it to steam takes 4-5 times as much energy as boiling it. That is why it takes a while for a kettle to boil dry.
What changes takes place in the egg after boiling it?
The egg softens.
What are different between evaporation and boiling?
Boiling- i) It is a bulk phenomena.ii) The substance changes it's state only at it's boiling point.iii) It doesn't give a cooling effect.Evaporation- i) It is a surface phenomena.ii) The substance does not change only at it's boiling point.iii) It gives a cooling effect.EVAPORATIONevaporation takes place silentlyit takes place at all temp.its a natural processit takes place only on surfacerate of evaporation depends on area of free surfaceBOILINGits associated with characteristic soundits takes place at all temp.to be heated for boilingat constant temp. boiling takes placeboiling takes place at all regions of liquidit does not depend on free surface
