States of matter
29 past-paper questions on States of matter · examined 2023–2025.
20258 questions
Substances exist as solids, liquids or gases. In which states of matter are the particles a similar distance apart?
A container with a fixed shape is filled with gas and then sealed. The container is then heated. Which changes take place?
A crystal of sodium chloride is dropped into a beaker of water. Over time, the sodium chloride particles become evenly distributed throughout the water. Which processes occur in this experiment?
An ice cube melts. What happens to the molecules of water in the ice cube?
A sample of a liquid, X, is heated to a temperature above its boiling point. X is then cooled, so that it condenses and then freezes. Which graph describes the change in temperature of X over time?
Complete Table 2.2 to show the effect, if any, on the volume of argon when: the temperature of the argon is increased, the pressure of the argon is increased.
Describe the arrangement and motion of the particles in a solid.
Explain the term saturated solution.
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