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(b) A pan containing water boiling at 100°C is standing on an electrically heated hot-plate. In
20 minutes, 0.075 kg of water is lost as steam. The specific latent heat of vaporisation of
water is 2.25 x 106 J/kg.
(i) Calculate the energy used in converting 0.075 kg of boiling water to steam.
energy =
[2]

b A pan containing water boiling at 100C is standing on an electrically heated hotplate In 20 minutes 0075 kg of water is lost as steam The specific latent heat class=

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