Question:

The critical temperature of water is higher than that of $O_2$ because the $H_2O$ molecule has

Updated On: Jun 14, 2022
  • fewer electrons than $O_2$
  • two covalent bonds
  • V-shape
  • dipole moment
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The Correct Option is D

Solution and Explanation

Critical temperature is directly proportional to intermolecular force of attraction. $H_2O $is a polar molecule, has greater intermolecular force of attraction than $O_2$, hence higher critical temperature.
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Concepts Used:

Liquid State

The liquid state of matter has the following properties:

  • As the particles moves it start moving everywhere inside the volume filled by the liquid.
  • Liquids have a strong inter-particle force, more inter-particle space than solids and enough kinetic energy.
  • It can be transformed into solids due to the solidification process.
  • Evaporation is the conversion of liquids to gases.
  • Liquid particles begin to flow more quickly when the temperature rises.
  • Liquids are difficult to compress because there is less space between particles for particles to migrate.
  • Constant volume but no constant shape.
  • In liquids, the rate of diffusion is faster than in solids.
  • Inter molecular attraction between particles is weaker than that between solids.

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