Q62 / 180 · AIIMS 2009 · Chemistry

Assertion : Ice $\rightleftharpoons$ water, if pressure is applied water will evaporate. Reason : Increases of pressure pushes the equilibrium towards the side in which number of gaseous molecule increases.

  • A
    If both assertion and reason are true and reason is the correct explanation of assertion
  • B
    If both assertion and reason are true but reason is not the correct explanation of assertion
  • C
    If assertion is true but reason is false
  • Correct answer
    D
    If both assertion and reason are false.

Solution

Increase in pressure favours melting of ice into water because at higher pressure melting point of ice is lowered. According to Le-Chatelier's principle, if pressure is increased the equilibrium will shift in direction which produces smaller number of moles.

Hence, the correct answer is option: 'D'.

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