Question

What is heat define briefly?​

Answer 1

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HEAT

it defines the quality of being hot and high temperature.

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Answer 2

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Heat is the form of energy that is transferred between two substances at different temperatures. The direction of energy flow is from the substance of higher temperature to the substance of lower temperature. Heat is measured in units of energy, usually calories or joules. Heat and temperature are often used interchangeably, but this is incorrect.