13.2

Question 1

Enthalpy change is dictated by what, in regards to the three types of interactions that take place among pure substances?

Answer 1

intermolecular forces involved with separating/bringing molecules together.

Question 2

What are three types of interactions that take place among pure substances?

Answer 2

solute-solute
solvent-solvent
solute-solvent

Question 3

What are the enthalpy changes associated with solute-solute interactions?

Answer 3

positive

Question 4

What are the enthalpy changes associated with solvent-solvent interactions?

Answer 4

positive

Question 5

What are the enthalpy changes associated with solute-solvent?

Answer 5

Negative

Question 6

What does a higher/ lower lattice energy dictate in the interactions of ionic solid compounds?

Answer 6

Higher= less soluble
Lower= more soluble

Question 7

The total enthalpy changes seen in the three types of interactions among particles of pure substances is known as…

Answer 7

enthalpy of a solution.

Question 8

What is the equation of the enthalpy of solution?

Answer 8

DeltaH(solution)= deltaH(solute-solute) + deltaH(solvent-solvent) + DeltaH(solute-solvent)