3.Describe what happens to an ice cube and some water at 0°C if you increase the

ID: 1052730 • Letter: 3

Question

3.Describe what happens to an ice cube and some water at 0°C if you increase the rate of water formation?

A) The ice cube melts.

B) Nothing, ice and water at 0°C is stable indefinitely.

C)The ice cube increases in size.

D) The rate of ice formation also increases.

E) none of the above

4. Why does liquid water expand slightly when cooled from 4°C to 2°C?

A)The molecules vibrate faster and the molecules move farther apart.

B)The molecules vibrate faster and the molecules move closer together.

C) The molecules vibrate slower and the molecules move farther apart as hydrogen bonds form.

D) The molecules vibrate slower and the molecules move closer together as hydrogen bonds form.

E) none of the above

Q3.

Note that if both are at 0°C, they ar ein equilibrium, so the best answer must be "B"

C) The molecules vibrate slower and the molecules move farther apart as hydrogen bonds form.

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