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An electric kettle is rated 500W ,220V.It is used to heat 400 grams of water for 30 sec.Assuming the voltage to be 220 V . Calculate the rise in temperature of water.Specific heat capacity of water = 4200J /kj℃

An electric kettle is rated 500W ,220V.It is used to heat 400 grams of water for 30 sec.Assuming the voltage to be 220 V . Calculate the rise in temperature of water.Specific heat capacity of water = 4200J /kj℃

Grade:10

1 Answers

Vikas TU
14149 Points
3 years ago
Dear Student,
From the given data,
P=500W
E=500x30 J
E=mcq
=>500x30=400/1000 x 4200 x q
=>q=8.92°C
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)

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