Enthalpy, Heat of Formation and Heat of Vaporization
Not what you're looking for?
1. Consider this data for compound X:
ΔHf 505.4 J/g ΔHvap= 3489J/g
Specific heat: X (s) = 0.96 J/g °C, X (1) = 3.88 J/g °C, X (g) = 1.21 J/g °C
Normal boiling point: 46.8 °C Normal freezing point: - 29.8 °C
a. Calculate the total energy change if 10.0 grams of X is changed from 11.0 °C to 88.9 °C.
b. Write out the chemical equation to which ΔHvap = 3489 J/g refers.
Purchase this Solution
Solution Summary
This solution explains how to calculate the energy required to take a compound through a series of transitions between a liquid and a gas. Heat of vaporization is used along with the specific heat of the compound in the liquid and gaseous phases.
Solution Preview
Part A
If compound X is at 11.0 °C, it is a liquid (it melts at -29.8 °C and doesn't boil until 46.8 °C). The compound ...
Purchase this Solution
Free BrainMass Quizzes
Thermochemistry
The quiz helps in revising basic concepts about thermochemistry.
Functional groups in Organic Chemistry
You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.
Organic Chemistry Naming: Alkanes
This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.
Match Elements with their Symbols
Elements are provided: choose the matching one- or two-letter symbol for each element.