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Thermodynamics — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryThermodynamics2 Marks
Question
For an isolated system, $\Delta\text{U}=0,$ what will be $\Delta\text{S}?$
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Answer

Change in internal energy $(\Delta\text{U})$ for an isolated system is zero for it does not exchange any energy with the surroundings. But entropy tends to increase in case of spontaneous reaction. Therefore, $\Delta\text{S}>0$ or positive.

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