Question

The latent heat of vaporisation of water is (a) 2.25 Ã 106 J/kg
(b) 3.34 Ã 106 J/kg
(c) 22.5 Ã 104 J/kg
(d) 33.4 Ã 105 J/kg

Answer 1

Answer:

c is the correct answer

Answer 2

The latent hear of vaporization of water is $2.25 \times 10^{5} J / k g.$

Explanation:

• The latent heat of vaporization is the heat energy required to convert 1kg of water molecules from a liquid state to gaseous or vapor state.
• This is done by increasing the vibrational frequency of water molecules till it reaches boiling point.
• The energy required to do this is measured in J/kg and is $2.25 \times 10^{5} \mathrm{J} / \mathrm{kg}.$