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4 October, 23:16

A PS4 uses 8.8 watts when on stand-by mode.

a) How much electricity would be used if you have your PS4 on stand-by 21 hours a day for 1 week?

Express your answer rounded to the nearest hundredth of a kilowatt-hour.

1.29 kW-hr

b) How much carbon dioxide is emitted into the atmosphere to produce this electricity?

Express your answer rounded to the nearest tenth of a pound of carbon dioxide.

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Answers (1)
  1. 4 October, 23:37
    0
    A. total power usage PS4 in a week = 8.8 watts x 21 hrs/day x 7 days/week

    = (1293.6 watt. hr/week) / (1 kW/1000w)

    = 1.29 KW hr / week

    b. carbon emission = 2.1lb/KW

    = 1.29 KW x 2.1lb/KW

    = 2.71 lb
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