Question

MCQ : The heat of vaporization of water at 100°C is

  • Heat
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Answer

Question

The heat of vaporization of water at 100°C is

  1. 4.186 J
  2. 539 J/g
  3. 539 cal/g
  4. 80 cal/g

Answer

539 cal/g

Explanation

The heat of vaporization of water at 100°C is approximately 539 cal/g or 2260 J/g. This represents the energy required to convert water from liquid to vapour at that temperature.

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