Name:

Since there are substances that dissolve endothermically, something else is involved in determining whether or not a substance will dissolve. What is this "something else"?

a$)$ kinetic energy

b$)$ potential energy

c$)$ osmotic pressure

d$)$ entropy

e$)$ enthalpy changes

Which of the following sets of conditions could exist when two liquids which are completely miscible in one another are mixed?

a$)$ Hsoln $>0,$ entropy of system decreases

b$)H$ soln ~~$0,$ entropy of system decreases

c$)H$ soln ~~$0,$ entropy change of system $0$

d$)$ Hsoln ~~$0,$ entropy of system increases

e$)$ None of these choices is correct.

What is the name of a solution that obeys Raoult's Law?

a$)$ ideal solution

b$)$ non$-$ideal solution

c$)$ suspension

d$)$ solute

e$)$ solvent

When two pure substances are mixed to form a solution

a$)$ heat is released.

b$)$ there is a decrease in entropy.

c$)$ heat is absorbed$.$

d$)$ entropy is conserved.

e$)$ there is an increase in entropy.