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Ideal gas molecules

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Question 4

This question is about temperature and pressure in gases.

a.

A gas is heated inside a rigid, hermetically sealed canister at constant volume.

Which statement correctly describes the behavior of the gas particles?

  • A They contract in individual volume.
  • B They strike the walls of the canister with greater force.
  • C They cluster together in the center of the canister.
  • D Their mean kinetic energy decreases.
[1]
b.

Describe how the average kinetic energy of the gas molecules changes as the temperature of the gas decreases from 320 K320\text{ K}320 K to 80 K80\text{ K}80 K.

[2]
c.

Convert a temperature of 27 ∘C27\ ^\circ\text{C}27 ∘C into kelvin (K).

[1]
d.

A gas in a cylinder of fixed volume has a pressure of 120 kPa120\text{ kPa}120 kPa at a temperature of 27 ∘C27\ ^\circ\text{C}27 ∘C. Calculate the new pressure when the temperature of the gas rises to 117 ∘C117\ ^\circ\text{C}117 ∘C.

[3]

Ideal gas molecules Questions

  1. IGCSE
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