HEAT
Heat is a form of energy that transfers from a region of higher temperature to a region of lower temperature until thermal equilibrium is established.
* Temperature measures the degree of hotness or coldness of a body (average kinetic energy of particles).
* Heat represents the total thermal energy transferred due to temperature differences
* Heat is a path function, its value depends on the path taken during energy transfer, but not on the initial and final states.
Units: 1.Joule (J) 2. Calorie 3. erg
4. ev.
* 1 cal = 4.184 J
- q > 0 → Endothermic (absorbs the heat)
- q < 0 → Exothermic (releases the heat).
Heat