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How can you use a spoon to cool cup of coffee.stirring which invovles doing work would seem to heat coffee rather than to cool it?
Wiki User
∙ 13y ago
True you are doing work, but that doesn't necessarily translate into heat. Some of it will generate heat through friction, but this is minimal. The reason stirring a cup of coffee will help cool it is because the coffee is mostly only able to cool at the surface where it is in contact with the relatively cool air. By constantly mixing up this hot fluid, you are bringing as much of it as possible in contact with the air where it can cool by conduction. Although if you try this yourself, you will find that it's not that effective.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoKeep stirring it.
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How can you best use a spoon to cool a cup of coffeestirring which involves doing work would seem to heat the coffee rather than to cool it?
Stirring really does cool it off and is the best way.
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