Properties of Liquids Quiz

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Questions and Answers

What is critical pressure?

  • The pressure required to liquefy a gas at its critical temperature (correct)
  • The pressure at which a gas evaporates into the atmosphere
  • The pressure at which a gas solidifies into a crystalline structure
  • The pressure at which a gas reaches its maximum kinetic energy

What is critical temperature?

  • The temperature at which a gas reaches its maximum kinetic energy
  • The temperature at which a gas can be liquefied under high pressure
  • The temperature at which a gas turns into a liquid spontaneously
  • The temperature at which a gas cannot be liquefied regardless of pressure (correct)

How do liquids differ from gases in terms of container filling?

  • Liquids completely fill the container space
  • Gases do not fill the entire container space
  • Liquids do not disperse to fill all the space of a container (correct)
  • Gases and liquids both fill the entire container space

What type of motion do liquids exhibit?

<p>Translational motion as a whole (D)</p> Signup and view all the answers

What happens to the speed of gas molecules when the gas is cooled?

<p>The speed of gas molecules decreases (C)</p> Signup and view all the answers

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Study Notes

The Liquid State

  • Liquids possess higher density compared to gases, occupying a specific volume and density due to van der Waals forces.
  • Liquids are relatively incompressible, meaning their volume does not change significantly under pressure.
  • As fluids, liquids do not have a definite shape, adapting to the shape of their container similar to gases.
  • Transitions between gas and liquid states, as well as from liquid to solid, are influenced by temperature and pressure conditions.
  • Cooling a gas decreases its kinetic energy, which results in a reduction in the velocity of the gas molecules.
  • When pressure is increased on a gas, molecules come closer, allowing van der Waals forces to induce a phase change to the liquid state.

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