How much carbon dioxide will you prevent from entering the atmosphere in one year if you replace a 100-watt light bulb with a CFL bulb that uses 30 watts in a fixture that is on for 8 hours per day? (Round to the hundredths place.)

Note: Assume 1.37 pounds of CO2 per kWh.

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Answer :

lholamidemakinde lholamidemakinde · Answer 1 · 2023-09-05T11:09:22-04:00

The amount of carbon dioxide will you prevent from entering the atmosphere in one year is 280028 lb

We are given 1.37 pounds of carbon dioxide per kWh

Using a 100-watt light bulb daily for 8 hours, for a year, the amount of carbon dioxide produced will be:

100 × 1.37 × 8 ×365 = 400040 lb

Using a 30-watt CFL bulb for 8hrs/ day for a year, the amount of carbon dioxide produced will be:

30× 1.37 × 8 × 365 = 120012 lb

Therefore, carbon dioxide prevented:

= 400040-120012

= 280028 lb

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