1 States of matter

Practice questions on States of matter

• A student places a crystal of purple potassium manganate(VII) at the bottom of a beaker of… (4 marks, Explain)
• Describe what is meant by diffusion and explain why diffusion occurs more quickly in gases… (4 marks, Describe and Explain)
• Explain why a liquid evaporates at temperatures below its boiling point. (4 marks, Explain)
• Explain why gases can be compressed much more easily than liquids. (4 marks, Explain)
• Compare the arrangement and movement of particles in a solid with those in a gas, and use … (4 marks, Compare)
• Explain why a solid has a fixed shape and cannot be compressed, whilst a gas has no fixed … (4 marks, Explain)
• Describe the arrangement and movement of particles in a liquid, and explain why a liquid t… (4 marks, Describe)
• Explain why ammonia gas diffuses faster than bromine vapour at the same temperature. (4 marks, Explain)
• A small amount of perfume is sprayed at one end of a long room. After a few minutes, the s… (4 marks, Explain)
• A scientist seals a small piece of solid iodine inside a glass flask containing air at roo… (4 marks, Explain)