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when it is already hot refrigerate it and when it is already cold boil it............ o simple
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What is the directinality of heat transfer?
From "hot" to "cold".
What will happen when a cold material interacts with a hot material?
The heat will transfer from the hot material to the cold material. Heat tends to go where it is not.
Can a cold spoon transfer heat?
No. Heat can only be transferred to a cold spoon, not the other way round (as there is no heat in a cold spoon to transfer). A simple example is when a cold teaspoon is used to stir a hot cup of tea. When the spoon is withdrawn, it is hot.
How does energy transfer?
hot to cold, fast to slow, high to low.
What is heat transfer when hot air rises and cold air sinks?
Convection...
What is hot to cold?
hot to cold is heat transfer
What is the directinality of heat transfer?
From "hot" to "cold".
What will happen when a cold material interacts with a hot material?
The heat will transfer from the hot material to the cold material. Heat tends to go where it is not.
Can a cold spoon transfer heat?
No. Heat can only be transferred to a cold spoon, not the other way round (as there is no heat in a cold spoon to transfer). A simple example is when a cold teaspoon is used to stir a hot cup of tea. When the spoon is withdrawn, it is hot.
How does energy from heat transfer from a hot source to a cold source?
Convection
How does energy transfer?
hot to cold, fast to slow, high to low.
What is the job of a thermos?
To keep hot liquids hot and cold liquids cold by minimizing heat transfer between the inside of the thermos with the outside.
What is heat transfer when hot air rises and cold air sinks?
Convection...
How heat transfer from cold body to hot body?
by doing external work on the system eg;refrigerator
On a molecular level How does heat transfer from a hot object to a cold object?
When things get hot they release lots electrons, on the cooler side the energy released by the hot thing excites the cooler thing in a type of stabilizing process because of the transfer of energy.
When does energy transfer from a cold object to a hot object?
heat only move from high temp to lower temp
What are some of the features of a thermos bottle that makes it a good container for keeping cold liquids cold and hot liquids hot?
The insulation of a thermos slows the transfer of heat into or out of it. So if there is a hot liquid inside, it cools down more slowly, and if there is a cold liquid inside, it warms up more slowly.
