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How can a cup of very hot tea have less thermal energy than a kettle of lukewarm water?
Even though the cup has very hot water it still has less thermal energy than the kettle because the kettle is larger than the cup therefor it has more liquid and more liquid = more molecules and the more molecules the more the heat energy ( thermal energy ) It does not matter how fast the particals are moving just how many there are , the cup has a lot less particals than the kettle so it has less thermal energy. This was wrote by an 11 year old just think about that .
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What happens to thermal energy when you mix hot and cool water together?
Since hot water is less dense that cold air the hot water will rise and the cold would sink then it keeps doing this in a circular motion 'till the thermal energy reaches to thermal equilibrium.
What makes hot water hot?
Hot water is hot because its molecules have a higher amount of thermal energy compared to cold water. This thermal energy causes the molecules to move faster and collide more frequently, resulting in a higher temperature. In practical terms, hot water is typically heated by a heat source such as a stove, kettle, or water heater.
Where is useful thermal energy stored?
Useful thermal energy can be stored in various ways, such as in water reservoirs for hydropower, in underground caverns for compressed air energy storage, in phase change materials for thermal energy storage, or in hot water tanks for solar thermal systems. The stored thermal energy can be later converted into electricity or used for heating purposes.
Does 1 kilogram of water have the same amount of thermal energy as 2 kilogram of water?
No they wouldn't, this refers to specific heat capacities. Generally, gold has a lower heat capacities than of water, thus it takes less energy to change the temperature of gold than it does to change the temperature of water. So if you add the same amount of heat to both systems of water and gold, the gold will be hotter than the water.
What are the advantages of an eco kettle?
Until now, conveniently measuring the correct amount of water to be boiled in your kettle has not been easy. It is estimated that, on average, we boil twice the volume of water needed every time. Which means twice as much energy, twice as much time. An eco kettle allows you to boil just the right amount of water every time.
What is the energy coversions in a kettle?
In a kettle, electrical energy is converted into thermal energy by the heating element. This thermal energy then transfers to the water, raising its temperature and causing it to boil.
What form of energy does the kettle have when water in it is boiling?
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What forms of energy does a kettle have?
A kettle has electrical energy when it is plugged in and heating up water. It also has thermal energy, as it heats up the water inside.
What energy transformation in kettle?
In a kettle, electrical energy is transformed into thermal energy through the process of resistive heating. The heating element inside the kettle uses the electrical energy to generate heat, which raises the temperature of the water inside the kettle.
What kind of energy is water boiling in a kettle?
The energy used to boil water in a kettle is primarily thermal energy, which is the heat transferred to the water from the heating element in the kettle. This causes the water molecules to gain kinetic energy and eventually reach the boiling point, turning into steam.
What is the useful energy in a kettle?
The useful energy in a kettle is the thermal energy that heats up the water inside the kettle, allowing it to reach the desired temperature for preparing beverages or food. This energy is essential for the kettle to fulfill its purpose of boiling water efficiently.
What energy transfer takes place in a kettle?
In a kettle, electrical energy is transferred to thermal energy as the heating element inside the kettle generates heat. This heat then transfers to the water, increasing its temperature and causing it to boil.
What is the energy conversion of a tea kettle?
A tea kettle converts electrical energy into thermal energy (heat) through a heating element that boils water. The heat energy is then transferred to the water, causing it to heat up and boil.
What energies come out of a kettle?
When a kettle is in use, the primary forms of energy involved are electrical energy and thermal energy. Here's how these energies are involved in the process: Electrical Energy: The kettle is connected to an electrical power source, and electrical energy is supplied to the heating element inside the kettle. The heating element is usually made of a resistive material, such as nichrome, which resists the flow of electricity, leading to the generation of heat. Thermal Energy: The electrical energy is transformed into thermal energy as the resistive heating element heats up. This thermal energy is transferred to the water inside the kettle, raising its temperature and causing it to boil. Heat Energy: The thermal energy generated in the heating element is transferred to the water, converting it from a liquid state to a gaseous state (steam) during the boiling process. Kinetic Energy: As steam is generated, it expands and exerts pressure, leading to the movement of steam molecules. This movement represents kinetic energy. Sound Energy: The boiling water and the release of steam can also produce sound energy. The bubbling and hissing sounds are examples of sound energy associated with the operation of a kettle. While electrical and thermal energies are the primary forms involved, the process of boiling water in a kettle can manifest in various forms of energy depending on the specific conditions and the environment
What is the energy transfer of a whistling kettle on a gas stove?
In a whistling kettle on a gas stove, energy transfer occurs primarily through thermal conduction and convection. The gas flame heats the kettle's bottom, transferring thermal energy to the water inside. As the water heats up and reaches its boiling point, it converts to steam, creating pressure that forces air through the whistle, producing sound energy in the form of a whistle. Thus, energy is transferred from chemical energy in the gas to thermal energy in the water and then to sound energy in the whistle.
How does energy change when you turn the kettle on?
The evaporation of water by boiling is the transfer of thermal energy (radiation or convection) to the molecules which form water vapor. The energy is the same, but it changes from kinetic to potential energy. As the water vapor gives up heat by conduction in the air, the water again condenses (dew, rain, ice, snow).
What is the input and output energy of a kettle?
The input energy of a kettle is typically electrical energy supplied from an outlet, which is converted into heat energy to boil water. The output energy is the thermal energy that heats the water to its boiling point, and any steam produced during this process. The efficiency of this energy conversion can vary, but ideally, most of the input energy is transferred to the water.
