Question

You make yourself and your friend a cup of hot chocolate and add vanilla ice cream. You quickly enjoy yours, but your friend takes a long time to come, so you get to observe theirs as a science experiment.

In what direction does the heat flow? (2 points)

Describe how the kinetic energy of the hot chocolate changes once you add the ice cream. (2 points)

How does the kinetic energy of the ice cream change once you put it in the hot chocolate? (2 points)

What happens to the temperature of each substance? Be specific. (2 points)

When will the temperature of the ice cream and the hot chocolate stop changing? (2 points)

Answer 1

Step-by-step explanation:

Heat always flows from HOT to COLD.

KE of hot chocolate decreases.

KE of ice cream increases.

Temp. of hot chocolate decreases (it cools down), temp. of ice cream increases (it warms up).

Temp. of each will stop changing when the 2 substances reach equilibrium (no more flow of heat).

Answer 2

How does the kinetic energy of the ice cream change once you put it in the hot chocolate?

Explanation: ice cream is cold when the hot chocolate is hot