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Define heat with its S.I Unit...

Define heat with its S.I Unit

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**Step-by-Step Solution:** 1. **Definition of Heat:** Heat is defined as a form of energy that is transferred between two systems or bodies due to a temperature difference. This transfer occurs spontaneously from a region of higher temperature to a region of lower temperature. 2. **Conditions for Heat Flow:** - Heat flows only when there is a temperature difference between two bodies or systems. - The direction of heat flow is always from the higher temperature to the lower temperature. ...
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