Concept Heat and Temperature Touch the ice bergs and pull out your hand, you will feel the surrounding temperature hotter. Be near the fire for sometime and come back in surrounding temperature, you will feel cold. The surrounding at same temperature feels hot sometime and cold sometime. It is because, you lose heat from your body when coming back from firewood and gain when you pull out you hand. Heat is form of energy. It gives us sensation of warmth. The amount of heat in a body cant determine either it is hotter or colder than other body. For eg, the amount of heat energy in 1kg of water at 5 C is greater than 1 gm of water at 100 C. So, we define the next term. Temperature known as degree of hotness or coldness of the body. It determines either a body is hotter or colder than other body. Heat is due to the molecular vibration of body. So, Heat can also be defined as total amount of kinetic energy possessed by the molecules of the body. Temperature as, the average kinetic energy of the molecules of the body.
Posted on: Thu, 06 Nov 2014 02:37:59 +0000
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