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Properties of Temperature, Heat and Their Relationship

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What is Heat? What is temperature? What are the various properties that account for temperature? What are the various sources of heat? What is the relationship between heat and temperature? How are they different?

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The solution discusses the properties of temperature, heath and their relationship.

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Many people confuse heat and temperature. Heat is a type of energy. Temperature is a measure of heat.

Extensive vs. Intensive Properties Heat is referred to as an extensive property. An extensive property depends on the amount of material present. A cup of water at 100o C has contains less heat than a gallon of water at 100o. Temperature, on the other hand, is an intensive property. It does not depend on the amount of substance present. Water boils at 100o C regardless of the amount of water present.

Thermal Energy

Heat is thermal energy. Atoms or molecules that are moving very fast have more thermal energy, i.e., more heat than do atoms or molecules that are moving slowly. In fact, if molecules were completely at rest, they would have no thermal energy, and the temperature would be defined as absolute 0. We can see the effect of thermal energy in phase changes. Consider water. When water molecules are bound together in a crystalline state, we ...

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