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Solids, liquids and gases

Solids, liquids and gases

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Question 34

This question is about temperature and pressure in gases.

a.

A gas is cooled in a closed, rigid container with a constant volume.

Which statement correctly describes the behavior of the gas particles?

  • A They hit the walls of the container with less force.
  • B Their average speed increases.
  • C They expand in size.
  • D They move much closer together.
[1]
b.

Describe what happens to the average kinetic energy of gas particles as the temperature increases from 5 K5\text{ K}5 K towards 50 K50\text{ K}50 K.

[1]
c.

Convert a temperature of 17 ∘C17\ ^\circ\text{C}17 ∘C into kelvin (K).

[1]
d.

A gas in a cylinder of fixed volume has a pressure of 145 kPa145\text{ kPa}145 kPa at a temperature of 17 ∘C17\ ^\circ\text{C}17 ∘C. Calculate the new pressure when the temperature of the gas rises to 75 ∘C75\ ^\circ\text{C}75 ∘C.

[3]
Markscheme

Solids, liquids and gases Questions

  1. IGCSE
  2. /Physics
  3. /Solids, liquids and gases

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