consider clothes washer for which an energy efficient model costing $670 uses 0.
ID: 115308 • Letter: C
Question
consider clothes washer for which an energy efficient model costing $670 uses 0.6kWH per load while a conventional model costing $420 uses 2.3 kWh per load. Suppose a family washes 300 loads of cloths per year and pays 10 cents per kWh. How much less carbon dioxide is released into the atmosphere each year by using the more energy efficient washer. Assume the electricity is generated by a coal-fired plant that emits 2 Ibs of carbon dioxide into the atmosphere for every kWh of delivered electricity. Answer should be in tons consider clothes washer for which an energy efficient model costing $670 uses 0.6kWH per load while a conventional model costing $420 uses 2.3 kWh per load. Suppose a family washes 300 loads of cloths per year and pays 10 cents per kWh. How much less carbon dioxide is released into the atmosphere each year by using the more energy efficient washer. Assume the electricity is generated by a coal-fired plant that emits 2 Ibs of carbon dioxide into the atmosphere for every kWh of delivered electricity. Answer should be in tons consider clothes washer for which an energy efficient model costing $670 uses 0.6kWH per load while a conventional model costing $420 uses 2.3 kWh per load. Suppose a family washes 300 loads of cloths per year and pays 10 cents per kWh. How much less carbon dioxide is released into the atmosphere each year by using the more energy efficient washer. Assume the electricity is generated by a coal-fired plant that emits 2 Ibs of carbon dioxide into the atmosphere for every kWh of delivered electricity. Answer should be in tonsExplanation / Answer
An energy efficient model
Electricity used per load =0.6kWH
Electricity used for 300 loads = 0.6 *300 = 180 KWH
Carbon dioxide emitted into the atmosphere = 180 * 2 = 360 lb
Conventional model
Electricity used per load =2.3 kWH
Electricity used for 300 loads = 2.3 * 300 = 690 KWH
Carbon dioxide emitted into the atmosphere = 690 * 2 = 1380 lb
Less carbon dioxide is released into the atmosphere each year by using the more energy efficient washer = 1380- 360= 1020 lb =1020* 0.0005 tons = 0.51 tons
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