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What is entropy?
How is entropy explained in terms of thermodynamics? Define entropy?
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Entropy is the quantitative measure of randomness in a system. This is a concept of thermodynamics. It deals with the transfer of heat energy within a system. When we heat any matter the atoms inside it get more energy and their movement increases. Their movement is always random in nature. The atoms never move in a fixed direction. So randomness increases when heat is applied from outside of a matter. Entropy is a term which was introduced in physics to capture or measure the randomness or disorder in the matter or system.
In an isothermal process, the change in entropy (delta-S) is the change in heat (Q) divided by the absolute temperature (T): delta-S = Q/T
In any reversible thermodynamic process, it can be represented in calculus as the integral from a processes initial state to final state of dQ/T.
The SI units of entropy are J/K (joules/degrees Kelvin).
In an isothermal process, the change in entropy (delta-S) is the change in heat (Q) divided by the absolute temperature (T): delta-S = Q/T
In any reversible thermodynamic process, it can be represented in calculus as the integral from a processes initial state to final state of dQ/T.
The SI units of entropy are J/K (joules/degrees Kelvin).
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