Fionamay39 Fionamay39

13-11-2022
Physics

Answered

An immersion heater is placed into 1 kg of water which is at a temperature of 25 °C. the temperature of the water rise to 100 °C in 315 s and the water starts to boil.

a) find the power of the heater,
b) how long will it take to boil all the water?

[Specific heat capacity of water = 4.2 x 103 Jkg-¹ C-¹/ specific latent heat of vaporization of water = 2.26 x 106 Jkg ¹]

Answer :

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