Question

mention formula for entropy

Answer 1

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Here is your answer:•

The second law of thermodynamics states that entropy in an isolated system – the combination of a subsystem under study and its surroundings – increases during all spontaneous chemical and physical processes. The Clausius equation of δqrev/T = ΔS introduces the measurement of entropy change, ΔS.

Answer 2

In the equation, Q is the heat absorbed, T is the temperature, and S is theentropy. Entropy is also the measure of energy not available to do work for your system.Entropy is a thermodynamic function used to measure the randomness or disorder of a system. For example, the entropy of a solid, where the particles are not free to move, is less than the entropy of a gas, where the particles will fill the container. Scientists have concluded that if a process is to be spontaneous, the entropy of that process must increase. This includes the entropy of the system and the entropy of the surroundings.


Entropy can be calculated using many different equations:

If the process is at a constant temperature then  , where ΔS is the change in entropy, qrev is the reverse of the heat, and T is the Kelvin temperature.



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