When you add cold milk and hot chocolate, they will slowly blend as the cooler liquid mixes with the warmer liquid. Eventually, the heat will be spread out evenly through the entire liquid. Which statement best explains why this happens?(1 point)

Question

A. The molecules of the two liquids form chemical bonds to spread energy.

B. Heat always moves from areas of higher temperature to areas of lower temperature.

C. Cold liquids rise and hot liquids sink making the liquids mix.

D. The liquids attract each other because the densities of the liquids are the same.

Answer 1

The best explanation for why the cold milk and hot chocolate eventually blend is:

B. Heat always moves from areas of higher temperature to areas of lower temperature.

This statement accurately describes the process of thermal equilibrium, where heat from the warmer liquid (hot chocolate) transfers to the cooler liquid (cold milk) until the temperatures equalize.