With the increasing molecular mass of hydrocarbons, they change from
Correct answer: C. Both A & B
- A. Gases to liquids
- B. Liquids to solids
- C. Both A & B
- D. None of these
Explanation
London forces are directly related to the mass of the molecules. So the attractive force between higher hydrocarbons is more. This is why the state of hydrocarbons is changing from gas --> liquid --> solid on increasing the number of carbon atoms.
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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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