A PS4 uses 8.8 watts when on stand-by mode.
2 answers:
Answer:
a) Electricity = 1.29 kWh
b) Carbon dioxide = 1.4 pounds
Step-by-step explanation:
Given : A PS4 uses 8.8 watts when on stand-by mode.
a) To find how much electricity would be used if you have your PS4 on stand-by 21 hours a day for 1 week
In 1 day PS4 is on standby = 21 hours
1 week = 7 days
In 7 days PS4 is on standby = 21 × 7 = 147 hr in a week
PS4 uses 8.8 watts
For 147 hr PS4 uses = 8.8 × 147 = 1293.6 watt-hour
To convert into kilowatt-hour divide watt-hour by 1000
In kW-hr =
Rounded to nearest hundredth electricity used = 1.29 kW-hr
b) How much carbon dioxide is emitted into the atmosphere to produce this electricity
1 kWh of electricity = 500 g of
In 1.29 kWh of electricity = 1.29 × 500 =645 gram of
Now, 1 gram = 0.00220462 pounds
645 gram = 1.42 pounds
Nearest tenth = 1.4 pounds
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