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2.1.1 States of matter and changes of state

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Question 33
a.

Identify the state of matter (solid, liquid, or gas) being described in each of the following cases:

  1. The particles are closely packed in a random, disordered arrangement and are free to move and slide past one another.
  2. The particles are highly ordered in a regular lattice structure, vibrating about fixed positions.
  3. The particles are widely separated, moving rapidly and randomly with negligible attractive forces between them.
[3]
b.

Name the term used to describe the process that is happening in each of the following scenarios:

(i) A liquid changes into a solid at a constant temperature.

(ii) A liquid changes into a gas, with vapor bubbles forming throughout the entire volume of the liquid.

(iii) A solid changes directly into a gas without passing through the liquid state.

[3]
Markscheme

2.1.1 States of matter and changes of state Questions

  1. IGCSE
  2. /Physics
  3. /2.1.1 States of matter and changes of state

44 exam-style questions on CIE IGCSE Physics 2.1.1 States of matter and changes of state. Each one has a worked solution and a mark scheme showing where the marks go.

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