Detectives find two substances at a crime scene. One is a poison, and the other
is a cleaning chemical. At room temperature, both substances are liquids. To test
the substances, the detectives transfer the same amount of energy into both
substances, but only the cleaning chemical changes phase. How is the cleaning
chemical different from the poison?
The cleaning chemical has a...
(A)weaker attraction between its molecules than the poison. Its molecules now
move in place.
(B)weaker attraction between its molecules than the poison. Its molecules
now move away from each other.
(C)stronger attraction between its molecules than the poison. Its molecules
now move away from each other.
(D)stronger attraction between its molecules than the poison. Its molecules
now move around each other.