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Question 30848
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Elasticity, Thermal Expansion, Calorimetry and Heat Transfer: Latent Heat MCQ

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Latent HeatMediumQuestion 30848

Question

Latent heat of vaporisation is greater than latent heat of fusion because:
  1. A
    Molecules need more energy to overcome intermolecular forces completely
    Correct
  2. B
    Gas is lighter than liquid
  3. C
    Boiling point is higher than melting point
  4. D
    Pressure is higher at boiling point

Correct answer

Molecules need more energy to overcome intermolecular forces completely

Explanation

Vaporisation requires separating molecules completely from liquid state, requiring more energy than melting (partial disruption).

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