Question

Was the thermal energy gained by the water greater, the same as, or less than the...

Was the thermal energy gained by the water greater, the same as, or less than the electrical energy dissipated by the resistor? Show calculations to justify your answer.

volume of water = 100 mL

Density of water = 1.00 g/mL

Mass of water = 100 g

Power Supplied = 2.10 W

Thermal Energy = 450 calories

Termperature Max = 26.6 degrees celcius

Temperature Min = 22.1 degrees celcius

Electrical Energy = 2268 J, 542 Calories

Electrical Equivalent of Heat = 5.04 J/cal (our calculated value)

Accepted Value = 4.186 J/cal

I provided every number that we calculated or we were gave in our electrical equivalent of heat lab, I don't know how to answer this question. Any help is greatly appreciated!

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Answer #1

The correct answer is less than.

Since

Thermal Energy = 450 calories

Electrical Energy = 542 Calories

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