An electric immersion heater rated at 100 W is used to heat up 10 kg of water initially at 20 Degrees Celsius. If any heat loss is ignored, how long does it take for the water to reach a temperature of 80 Degrees Celsius? b) Now you cannot wait that long to take a warm shower and your patience is only 15 minutes. So, you decide to buy a new and more powerful heater. What should be the power of the heater?

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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a) An electric immersion heater rated at 100 W is used to heat up 10 kg of water initially at
20 Degrees Celsius. If any heat loss is ignored, how long does it take for the water to reach a
temperature of 80 Degrees Celsius? 

b) Now you cannot wait that long to take a warm shower and your patience is only 15
minutes. So, you decide to buy a new and more powerful heater. What should be the
power of the heater?

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