Question

The fluorocarbon compound c2cl3f3 has a normal boiling point of 47.6°c. the specific heats of c2cl3f3(l) and c2cl3f3(g) are 0.91 j/g·k and 0.67 j/g·k, respectively. the heat of vaporization for the compound is 27.49 kj/mol. calculate the heat required to convert 36.0 g of c2cl3f3 from a liquid at 10.00°c to a gas at 108.00°c.

Answer 1

To raise the liquid temperature to the point of boiling take 1231.776 joules of energy. To convert to a gas takes 5320.645 joules. To raise to 108 degrees Celsius takes 1456.848 joules. Total amount of energy needed (as heat) equals 8009.269 joules or 8.009 kj.