Calculate $\Delta$ G ^$\circ$ for the Reaction 3NO₂(g) + H₂O(l) $\rarr$ 2HNO₃(l) + NO(g)

question 2

Multiple Choice

Calculate $\Delta$ G ^$\circ$ for the reaction 3NO₂(g) + H₂O(l) $\rarr$ 2HNO₃(l) + NO(g) . $\begin{array}{lc}&\Delta \mathrm{G}^{\circ}_\mathrm{f}(\mathrm{~kJ} / \mathrm{mol}) \\\hline\mathrm{H}_{2} \mathrm{O}(\mathrm{l}) & -237.2 \\\mathrm{HNO}_{3}(\mathrm{l}) & -79.9 \\\mathrm{NO}{(\mathrm{g}}) & 86.7 \\\mathrm{NO}_{2}(\mathrm{g}) & 51.8\end{array}$

• A) 8.7 kJ/mol
• B) 192 kJ/mol
• C) -414 kJ/mol
• D) -192 kJ/mol
• E) -155 kJ/mol

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Definitions:

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of values.

Average Amount

Similar to mean, it represents the central value of a data set by calculating the sum of all numbers in the set divided by the quantity of numbers.

Sugar

A sweet-tasting, soluble carbohydrate found in many plants and used as a sweetener in food and beverages.

Standard Deviation

A statistic that measures the dispersion or variability of a set of data points relative to its mean, indicating how spread out the values are.