Which of the following is an example of liquid in gas solution?
Correct answer: D. Fog
- A. Opals
- B. Dust particles in smoke
- C. Paints
- D. Fog
Explanation
Fog is an aerosol consisting of tiny liquid water droplets dispersed in a gas, so it is a liquid-in-gas colloidal system. Dust particles in smoke are solid-in-gas, which is why b is the likely mistaken choice.
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About Properties of Liquids
Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.
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