You put a drop of food coloring into a container of room temperature water and watched as the color spread out in the water. Describe what caused the color to spread. (You do NOT stir it)

the dye is heavier than the water so the substances fuse together instead of sitting at the top much like the phenomenon  with oil and water combination

Have a good day!

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.