Question 1
1 markWhat happens to the internal energy of a block of ice at \(0\text{ }^{\circ}\text{C}\) as it melts into water at the same temperature?
GCE O-Level · Physics (6091)
Melting, boiling and evaporation: Practice Questions
5 multiple-choice questions marked as you go, and 2 written questions with worked solutions. All on Melting, boiling and evaporation.
7 questions11 marksFree, no account
Question 2
1 markWhich of the following best explains why a liquid cools down during the process of evaporation?
Question 3
1 markWhich of the following changes will decrease the rate of evaporation of a liquid in an open container?
Question 4
1 markWhich of the following statements correctly describes a difference between boiling and evaporation?
Question 5
1 markThe diagram shows the cooling curve of a pure substance as it is cooled from a gas to a solid. In which region(s) is the substance existing as a mixture of both liquid and solid states?
Question 6
2 marksState two differences between the processes of boiling and evaporation.
Write your answer out first, then check it against the worked solution.
Question 7
4 marksThe graph shows the temperature change of a pure substance as it is cooled from a liquid to a solid. Explain why the temperature remains constant during the horizontal section of the graph, and describe the change in the total internal energy of the substance during this time.
Write your answer out first, then check it against the worked solution.
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