Question detail
Which statement is true about the process of evaporation?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Changes of state and the particle model
Question
- A. It requires the liquid to be heated to its boiling point.
- B. It occurs only in closed containers.
- C. It can happen at any temperature.
- D. It results in a decrease in the mass of the liquid.
Answer
The correct answer is It can happen at any temperature..
Explanation
Unit lens: Check the units before giving the final statement so the physics quantity is not swapped. This question asks: Which statement is true about the process of evaporation. The correct response is It can happen at any temperature., because changes of state are explained by particle energy and arrangement. In Changes of state, the marking point should connect directly to explain evaporation as particles escaping from the surface of a liquid. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Changes of state and the particle model, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 145 is distinct because it uses this exact question context and the unit lens rather than a generic particle-model sentence.
Common mistake
Evaporation Misunderstanding
Students often think that evaporation occurs only when a liquid is boiling, rather than understanding that it can happen at any temperature from the surface of a liquid.
Emphasize that evaporation occurs when particles at the surface gain enough energy to escape into the air, regardless of the temperature of the liquid.
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