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Grade: 11
        
Temperature and heat are often confused, as in “the heat is really severe today.” By example, distinguish between three two concept as carefully as you can.
 
3 years ago

Answers : (1)

Aditi Chauhan
askIITians Faculty
396 Points
							Heat: - It is the agent which produces in us the sensation of warmth and makes bodies hot. It is a form of energy. It flows from higher to lower temperature. In any exchange of heat, heat lost by the body is equal to the heat gained by the cold body. Substances generally expand when heated but the weight remains the same. A certain amount of heat known as latent heat is required to change the state of a body from solid to liquid or from liquid to gas without any change in temperature.
Temperature: - It is defined as the degree of hotness of a body. Just as water flows from a higher level to a lower level, heat flows from a body at higher temperature to a body at lower temperature. Thus temperature is defined as that thermal state of a body which determines the direction of heat flow when bodies are placed in contact.
When two bodies, at different temperatures, are brought in thermal contact, the flow of heat energy will continue until the temperature of the two bodies become equal. The state equality in the temperature of two bodies is known as thermal equilibrium. Thus the temperature is the property of all thermodynamic systems in equilibrium state, such that temperature equality is the necessary and sufficient condition for thermal equilibrium.
Thus heat is an energy that flows between a system and its environment because of a temperature difference between them

3 years ago
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