Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Expert Solution
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Step 1

Given, electricity generated in South Africa per year = 234.5 x 109   kWh = 234.5 x 109 x 10-3 MWh = 2.345 x 108 MWh

           Mass of CO2 absorbed per hectare of spekboom plants per year = 3.8 tonnes

           Mass of CO2 emitted per year per Megawatt-hour (MWh) = 1559 pounds

Thus, mass of CO2 emitted per year for 2.345 x 108 MWh of electricity generated = 2.345 x 108 x 1559 pounds

                                                                                                                                   = 2.345 x 108 x 1559 x 453.59237 g

                                                                                                                                   =1.658 x 1014 g

                                                                                                                                   = 1.658 x 1014 x 10-3 kg

                                                                                                                                   = 1.658 x 1011 x 10-3 tonnes

                                                                                                                                   = 1.658 x 108 tonnes

                                                                                  

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