The HEAT AND TEMPERATURE CHAPTER covers the
- Introduction to the physics of Heat and Temperature
- Temperature scales
- Temperature measurement
- Heat loss: Mechanism, prevention and side effects
Heat is a form of energy that passes from one material to another across a temperature gradient (from an object at a higher temperature to an object at a lower temperature).
Temperature is the measure of the average translational kinetic energy associated with the disordered motion of atoms and molecules or thermal state of an object, physically felt as to how hot or cold an object is?
Temperature is the property of a system that determines whether heat is transferred to or from an object.
Units of heat energy:
SI unit: Joules.
Commonly used units: calories and Kilocalories
1 calorie = 4.86 joules
1 calorie (or 4.16 joules) is the heat energy required to raise the temperature of 1 g of water by 1 degree Celsius.
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