Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN: 9781133949640
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Chapter 20, Problem 28PS
Interpretation Introduction

Interpretation: The efficiency of the microwave oven by comparing energy consumption with energy required to raise the water temperature should be determined from the given data.

Concept introduction:

Microwave oven: Conversion of electric energy into microwave energy is the basis of microwave oven. It consumes lesser energy than gas stove, but cost will be higher for microwave oven usage.

%efficiency=energyabsorbedbywaterenergyreleasedbythehotplate

Energyabsorbedbywaterinjoules=massofthewater(g)×ΔT°C×4.18Jg°CEnergyreleasedbyhotplateinjoules=Totalhotplatewattage(watts)×time(s)×[1J/swatt]

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Chemistry & Chemical Reactivity

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