Preparation
Forces and Bonding: The Forces Project

Name:

Section:

Read

1. The appropriate sections of your text book.

Problems

1. Suppose that when two liquids, A and B, are mixed, the total volume after mixing is smaller than the sum of the volumes of the two liquids before mixing. What does this imply about the forces acting between A and B molecules?
2. Suppose that when two liquids, A and B, are mixed, the temperature after mixing is higher than the temperature before mixing. What does this imply about the forces acting between A and B molecules?
3. Suppose that when two liquids, A and B, are mixed, the total volume after mixing is smaller than the sum of the volumes of the two liquids before mixing. Will the temperature of the mixture be higher or lower than the temperature before mixing? Why?
4. Suppose that when two liquids, A and B, are mixed, the temperature after mixing is lower than the temperature before mixing. What does this imply about the forces acting between A and B molecules?