Specific Heat

Not all the material absorbs heat at the same speed if the material have the same temperature change. For example, if water, iron, mercury, and gold in the same weight and same initial temperature,have temperature increase the same, each will absorb different amounts of heat. Unit called the specific heat is used to show the heat absorption capability. Specific heat of a substance is the amount of calories needed to raise the temperature of one gram of a substance by 1 degree centigrade.

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THERMOMETER

In determining a thermometer scale, selected what was referred to the points anyway. Usually the points are the freezing point and boiling point at normal atmospheric pressure. XVIII century Swedish astronomer, Andres Celsius thermometer illustrate by giving a value of 100 for the boiling point of water and the value 0 to its freezing point. range from 0 to 100 was divided into 100 parts called degrees.

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MEASURING HEAT INTENSITY

We have to measure the heat in order to acquire certain knowledge about heat. Our feelings cannot be use to measuring the degree heat an object because it is often mislead us.

In solid Object, the molecules attract to each other with more powerful and permanent position, so the vibration of the molecules just around a fixed point.

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HEAT PROPERTIES - NATURE OF THE HEAT

The nature heat is an energy that cannot be seen, heard, or smelled. However, the influence of this energy can be felt. In addition properties of the heat energy in general also have special properties. This suggests that the heat properties could have moved to another place. The closer the heat source, more hotter and faster it transfered. Further away from the heat source, the less heat is transfer.

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