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Thermodynamics — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThermodynamics1 Mark
Question
Give an example of a spontaneous process which is endothermic.
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Answer

$\mathrm{N}_2(\mathrm{g})+\mathrm{O}_2(\mathrm{g}) \rightarrow 2 \mathrm{NO}(\mathrm{g})$
It is endothermic as well as spontaneous because entropy is increasing and $\Delta\text{G}=-\text{ve.}$

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