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Warming 1 kg of water requires 4.186 kJ of energy per degree Celsius. About how long...

Warming 1 kg of water requires 4.186 kJ of energy per degree Celsius. About how long would it take to warm 1L of water from 20º C to 40º C if you immerse in the water a 100 Ω resistor connected across 9.0-V batteries aligned in series?

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