1.

A 4 kW, 20 litre water heater is switched on for 10 minutes. The heat capacity Cp for water is 4 kJ/kg-K. Assuming all the electrical energy has gone into heating the water. The increase of the water temperature is

A. 15°C
B. 20°C
C. 26°C
D. 30°C
Answer» E.


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