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Wonders of Physics

Finding specific latent heat of vaporisation (lv) (pure physics)

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Take note that the question is looking for specific latent heat of vaporisation during boiling. Hence information of mass m1 before heating is not relevant. There is no change of state of the water, it is merely the heating of the water (which involves specific heat capacity of water).

Refer to the worked solution below.

Solutions: Option D

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