Q98 / 180 · AIIMS 2009 · Physics

Assertion : Liquid molecules have greater potential energy at the melting point. Reason: Intermolecular spacing between molecules increases at melting point.

  • 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
  • Correct answer
    C
    If assertion is true but reason is false
  • D
    If both assertion and reason are false.

Solution

When a solid changes into a liquid, the work done against the attraction of molecules is stored in the form of potential energy.

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

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