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The standard molar entropy of vaporization (ÎS°vap) for benzene is 88 J/molâ¢K at 25°C. Consider this information, along with the following standard molar enthalpies of formation (ÎH°f) for benzene at 25°C, and estimate the normal boiling point of benzene. (ÎH°f [C6H6(l)] = 49 kJ/mol; ÎH°f[C6H6(g)] = 80 kJ/mol)
91°C
65°C
79°C
110°C
84°C
The standard molar entropy of vaporization (ÎS°vap) for benzene is 88 J/molâ¢K at 25°C. Consider this information, along with the following standard molar enthalpies of formation (ÎH°f) for benzene at 25°C, and estimate the normal boiling point of benzene. (ÎH°f [C6H6(l)] = 49 kJ/mol; ÎH°f[C6H6(g)] = 80 kJ/mol)
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Related questions
Consider the oxidation of NO to NO2 :
NO(g)+12O2(g)âNO2(g)
Reactant or product | ÎHâf(kJ/mol) | Sâ(J/molâ K) |
NO | 91.3 | 210.8 |
O2 | 0 | 205.2 |
NO2 | 33.2 | 240.1 |
Part A
Calculate ÎGârxn at 25âC.
Express your answer with the appropriate units.
Part B
Determine whether the reaction is spontaneous at standard conditions.