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Calculate the oxidation numbupnurDefine entropy, what are the conditions for entropy when system(a) Equilibrium(b) Spontaneous(c)Non Spontaneous. |
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Answer» entropy is a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system. According to the Second Law of Thermodynamics a spontaneous change results in an increase in theentropyof the universe. In an isolated system, when the system'sentropyreaches the maximum, the system stays there because any further change would reduceentropy. That's obviously theequilibriumposition. The second law of thermodynamics states that a process involving an isolatedsystemwill bespontaneousif theentropyof thesystemincreases over time. ... In many processes, the increase inentropyof the surroundings is accomplished via heat transfer from thesystemto the surroundings (i.e. an exothermic process). In order for a reaction to benonspontaneous, it must be endothermic, accompanied by a decrease inentropy |
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