Molecules are always in constant random motion due to the possession of energy. The thermal energy is the total kinetic energy of all molecules in a system.
What is entropy?
The term entropy refers to the degree of disorderliness in a system. We shall now match each term with its appropriate description.
- Heat - The transfer of thermal energy between objects
- Thermal energy - Total kinetic energy of all molecules in a system
- Conduction - Heat transfer through direct contact between molecules
- Convection - Heat transfer through movement of liquids or gases
- Radiation - Heat transfer by way of electromagnetic waves
- Specific heat - Heat required to raise 1 g of a substance 1°C
- Enthalpy - Heat given off or absorbed in a reaction
- Entropy - A measure of the randomness in a system
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