An ice cube tray can make 16 ice cubes. Each mold is fi lled with 25 mL of water, and

Chapter 0, Problem 4

(choose chapter or problem)

An ice cube tray can make 16 ice cubes. Each mold is fi lled with 25 mL of water, and the ice cube tray is placed in the freezer. a. As the water is freezing, is energy transferred from the freezer to the water, or from the water to the freezer? Draw a diagram of this scenario with an arrow showing the direction of heat transfer. b. Would the freezing of the water in the tray be considered endothermic or exothermic for the ice cube? c. Based upon your answer to part a, calculate the amount of heat transfer needed to freeze one ice cube. d. Based upon your answer to part a, calculate the amount of heat transfer needed to freeze all the ice cubes in the tray.