Heat Transfer Through Conduction
Heat Transfer Through Conduction
Transfer of heat:
Heat is transferred by conduction, convection and radiation.
Conduction -
Transfer of heat from one particle to the adjacent particle is known as conduction of heat. In solids, heat is transferred by the process of conduction. In this process, the transfer of heat takes place through adjacent molecules.
Example: When one end of an iron rod is put over flame then part which is nearer to the flame is heated first and heat is gradually transferred to the other end of the rod. This happens because particles of iron rod which are nearer to the flame receive the heat and transfers this to the adjacent particles. Subsequently, the adjacent particles transfer the heat to the next adjacent particles. This process continues and heat reaches to the other end of the rod. Thus, heat transfer in solid takes place through conduction.
Conductor and Insulator:
Materials which allow heat to pass through it are called conductor or good conductor of heat, such as iron, copper, aluminium, etc. All metals are good conductors of heat. Since, mercury is a metal and found in liquid state at room temperature, that’s why it is used in thermometer.
Since metals are the good conductor of heat that’s why kitchen utensils are made of metals or alloys of metals.
Materials which do not allow heat to pass through them are called bad conductor or poor conductor of heat. They are also called insulators. Example: rubber, wood, plastic, etc. This is the cause that handles of frying pan or other kitchen utensils are made of plastic.
Application Of Conduction And Insulators
Transfer of heat from one particle to the adjacent particle is known as _______________________________ . | |||
| Right Option : B | |||
| View Explanation | |||
Stainless steel pans are usually provied with copper bottoms. The reason for this could be that | |||
| Right Option : C | |||
| View Explanation | |||
An iron ball at | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [20]
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8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
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Aman Kumar Shrivastava
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10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
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8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
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