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States of matter

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Question 9

The melting and boiling points of three substances are given below:

  • Xenon: melting point −111.8 ∘C-111.8\text{ }^\circ\text{C}−111.8 ∘C, boiling point −108.1 ∘C-108.1\text{ }^\circ\text{C}−108.1 ∘C
  • Ammonia: melting point −77.7 ∘C-77.7\text{ }^\circ\text{C}−77.7 ∘C, boiling point −33.3 ∘C-33.3\text{ }^\circ\text{C}−33.3 ∘C
  • Mercury: melting point −38.8 ∘C-38.8\text{ }^\circ\text{C}−38.8 ∘C, boiling point 356.7 ∘C356.7\text{ }^\circ\text{C}356.7 ∘C

Determine the physical state (solid, liquid, or gas) of each substance on the surface of Mars at an ambient temperature of −60 ∘C-60\text{ }^\circ\text{C}−60 ∘C.

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Markscheme

States of matter Questions

  1. IGCSE
  2. /Chemistry
  3. /States of matter

12 exam-style questions on Edexcel IGCSE Chemistry States of matter. Each one has a worked solution and a mark scheme showing where the marks go.

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