Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
States of Matter
102 practice questions
Topics covered
Practice questions
41–42 of 42 · Easy
Question 41
5 marks · Easy
Answer and see the solution →The diagram below shows particles of a substance in three different boxes, labelled 1 (A), 2 (B), and 3 (C).
Diagrams of particle arrangements in three states. Each diagram represents a different state of matter at room temperature.
(a)[1 mark]Match each box (1, 2, or 3) to the correct state: solid, liquid, or gas.
(b)[1 mark]Describe the arrangement of the particles in box 2.
(c)[1 mark]State what process will occur if the substance in box 1 is heated strongly, and name the state formed.
(d)[2 marks]Describe, using particle theory, what happens to the movement of the particles during this process.
Question 42
5 marks · Easy
Answer and see the solution →A student leaves a dish of water on a sunny windowsill. After a day, most of the water is gone.
(a)[1 mark]State the process that has occurred to the water.
(b)[1 mark]Describe the arrangement of water particles in the liquid state.
(c)[2 marks]Explain, using particle theory, how the process in (a) happens.
(d)[1 mark]Name the new arrangement and movement of the water particles after the process has finished.