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NEETChemistryChemical Equilibrium

What causes the rate of evaporation to equal the rate of condensation in a closed container?

Options

  1. AAn increase in vapor pressure
  2. BAn equilibrium between escaping and returning molecules
  3. CA decrease in temperature
  4. DA decrease in liquid volume

Correct answer

B. An equilibrium between escaping and returning molecules

Step-by-step solution

The rate of evaporation equals the rate of condensation due to an equilibrium between molecules leaving the liquid and returning to it.

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