18. Suppose you add a drop of blue dye to a container of clear water, and after several hours, the fluid is evenly colored light blue. Which of the following is most TRUE regarding the chemical properties of the blue dye solution?

Question

A. as the dye molecules slowed down, they will settle to the bottom of the container
B. molecules moved until they were evenly distributed, and continued to move within the container.
C. molecules moved until they were evenly distributed, and then they stopped.
D. this is a lipid system. if it were a solid, the molecules would have stopped.

Answer 1

The most true statement regarding the chemical properties of the blue dye solution is:

B. molecules moved until they were evenly distributed, and continued to move within the container.

This choice correctly describes the process of diffusion, where dye molecules move from an area of higher concentration to an area of lower concentration until they are evenly distributed. Even after achieving uniformity in color, the molecules continue to move randomly due to their kinetic energy.