The fundamentals of refrigrator are also at work in another important household appliance: the air conditioner. It’s estimated that around 5 percent of all the electrical energy used in the U.S. is expended to keep our homes cool. That’s pretty amazing, especially when you consider the fact that the principle behind mostrefrigrator is simple. Here it is in one sentence: When a liquid evaporates, it absorbs heat in the process. If you want to get rid of heat, you need to coax a liquid to convert to its gaseous stateBefore refrigration preserving food was a big job.
Name: M. Yaseen
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