HOUSEHOLDS a.) If you use 1200 kilowatt-hours of electricity in a month, what is
ID: 121462 • Letter: H
Question
HOUSEHOLDS a.) If you use 1200 kilowatt-hours of electricity in a month, what is the equivalent energy measured in gallons of gasoline? You can use the following website calculator to help you convert units. How far could you drive a car in month with the same energy? (2 points) http://www.onlineconversion.com/energy.htm b.) Suppose you bring 75 pounds of groceries into your home each week. Please estimate how many pounds of each type of waste leaves your home. Does this add up to 75 pounds? Where do the various forms end up? (5 points) c.) If you install a low flow (1.2 gallon/min) showerhead instead of a regular (2.7 gallon/min) showerhead, how much water would you save for a 12-minute shower? (3 points)Explanation / Answer
As per the website 1 kilowatt hour = 0.027 322 404 372 gallon [U.S.] of automotive gasoline
1200 kilowatt hour = 1200 x 0.027 322 404 372 gallon = 32.786 885 246 gallon
On an average a car runs 23.6 miles per gallon
therefore, car can run 32.786 x 23.6 miles = 773.74 miles in a month.
b) The waste we'll get from 75 pounds of groceries is 1 pound of plastic, approximately 25 pounds of organic waste(which includes waste from vegetables, peel off of fruits and vegetables), 2 pounds of seeds, 10 pounds will be used as our body's nutrition and 35 pounds of the remaining will be coming out as the excreta. No we would be left with 2 pounds which will be used up as energy for various processes.
c) 1.2 gallon/minute for 12 minutes is equal to 14.4 gallons
while 2.7 gallon/minute for 12 minutes is equal to 32.4 gallons
Hence we would be saving 18 gallons in a 12 minutes shower.
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