HKDSE Physics Practice Questions - Hong Kong Diploma Of Secondary Education (HKDSE) Physics Exam

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An electric kettle supplies 84000 J of heat to 0.50 kg of water, raising its temperature. If the specific heat capacity of water is 4200 J/(kg K), what is the temperature rise (ignoring losses)?

20 K 168 K 100 K 40 K

Correct Answer:

40 K

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