Question:

Why is heat energy lost to the environment when heat is added to liquid?

by  |  earlier

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I cant find out what does this mean! and i am desperate! plz help! thxs!

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4 ANSWERS


  1. When heat is added to room-temperature liquid, it becomes warmer than the environment. Heat always flows from warm to cool. So heat flows out of the liquid and into the environment, where it spreads out and gets dispersed until the heat is essentially "lost".

    That's why a hot cup of coffee cools down eventually. The heat is lost to the environment.


  2. one would guess that you've not included the whole question.

    eg, when you boil a pan of water, lots of heat is lost outside the pan.

    if you feel the outside of your hotwater heater, it's warm, and heat is being lost.

    (i've a small room where the heater is, and on the coldest day it's always warm in there.)

    as hot water cools down, that heat goes into the environment.

    sorry, i'm having trouble guessing what the context of your question is.

  3. It is the law of conservation of energy. Energy cannot be created or destroyed, only changed from one form to another or moved from place to place.

    By that law, and energy added to the water had to come from somewhere, and the word "environment" is just a catch all term to mean "anywhere outside the water".

  4. Simple.

    When a heat is added to liquid( eg. heating a liquid), the liquid will be hotter. As heat flows from a hotter region to a cooler region, heat is lost to the environment. In this case, the environment is cooler than the liquid.

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