Octane (C8H18), an important component of gasoline, is a flammable compound with a boiling point of 125.67°C. The ΔHvap of octane is 34.41 kJ/mol. Its freezing point is -56.82°C and its ΔHfus is 20.73 kJ/mol. The specific heats of octane liquid and vapor are 2.15 J/gK and 1.71 J/gK, respectively:   Although it is nonpolar, octane has a higher boiling point than water. Explain why this is reasonable. Although octane is a liquid at room temperature, it is dangerous not only to light the liquid itself, but also to have an open flame in its vicinity. Why is this the case? What could be done to mitigate this hazard? Calculate the amount of heat loss that would be just sufficient to freeze 3.5 g of octane vapor beginning at 227°C.

Octane (C8H18), an important component of gasoline, is a flammable compound with a boiling point of 125.67°C. The ΔHvap of octane is 34.41 kJ/mol. Its freezing point is -56.82°C and its ΔHfus is 20.73 kJ/mol. The specific heats of octane liquid and vapor are 2.15 J/gK and 1.71 J/gK, respectively:

1. Although it is nonpolar, octane has a higher boiling point than water. Explain why this is reasonable.

1. Although octane is a liquid at room temperature, it is dangerous not only to light the liquid itself, but also to have an open flame in its vicinity. Why is this the case? What could be done to mitigate this hazard?

1. Calculate the amount of heat loss that would be just sufficient to freeze 3.5 g of octane vapor beginning at 227°C.