Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThermodynamics1 Mark
Question
State a chemical reaction in which $\Delta\text{H}$ and $\Delta\text{U}$ are equal.
✓
Answer
$\mathrm{H}_2(\mathrm{g})+\mathrm{I}_2(\mathrm{g}) \rightarrow 2 \mathrm{HI}(\mathrm{g})$
Since $\Delta\text{n}=0,\ \therefore\Delta\text{H}=\Delta\text{U}.$
$\because$ Number of moles of gaseous reactants and products are equal.
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