a. A 500 W kettle contains 300 g of water at 20 C. Calculate the minimum time
Question:
a. A 500 W kettle contains 300 g of water at 20 °C. Calculate the minimum time it would take to raise the temperature of the water to boiling point.
b. The kettle is allowed to boil for 2 minutes. Calculate the mass of water that remains in the kettle. State any assumptions that you make.
(Specific heat capacity of water = 4.18 × 103 J kg−1 °C−1; specific latent heat of vaporisation of water = 2.26 × 106 J kg−1.)
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Related Book For 
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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