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(b) The diagrams show two ways of heating water. plastic case glass beaker containing 0.6 kg water 0.6 kg water burner element A [i]
(b) The diagrams show two ways of heating water. plastic case glass beaker containing 0.6 kg water 0.6 kg water " burner element A [i] The electric kettle is supplied with 2500 joules of energy each second. The water in the kettle gains 2200 joules of heat energy each second. Calculate the amount of energy wasted each second. l1:I 300 energy wasted each second = J (ii) Complete the diagram to show the main energy transfer that takes place when the Bunsen burner is used to heat the water. l1:I electrical thermal energy energy {iii} Explain why heating the water using the kettle and the Bunsen burner waste different amounts of energy. l2:I
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