10 minutes maximum! (can you do it in 5?) | ||||||||||||||||
Q1-3. The diagram shows particles of a substance in three states of matter.
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1. Which of the following statements is true about diagrams X, Y and Z?
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2. Which of these diagrams shows the particles with the most and the least energy?
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3. Which change occurs during freezing?
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4. The particles vibrate about a fixed position in a ….
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5. In which substance are the particles close together and slowly moving past each other?
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6. The particles in molten wax are arranged differently compared to solid wax. The particles in molten wax are …….
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Q7-9: These questions concern changes of state. What is the name of the interconversion when …… |
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7. ...molten iron changes to solid iron. | ||||||||||||||||
8. ...steam changes to water. | ||||||||||||||||
9. ...ice changes to water. | ||||||||||||||||
10. Substance P has a melting point of -35°C and a boiling point of 86°C. Substance Q melts at 54°C and boils at 205°C. At room temperature (25°C) the states of substances P and Q are: |
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