Let’s assume the Ames municipal power plant has the capacity to produce 1,500,00

Question

Let’s assume the Ames municipal power plant has the capacity to produce 1,500,000 kWh per day using 700,000 kg of coal each day.  

How many kilograms of coal are burned to provide electricity for your 5 devices for one day?

Steps:
1) Calculate the proportion of the power plant's daily capacity that you consumed by using your 5 devices.
2) Multiple this proportion by the mass of coal listed above.

Type out your answer using the follow format and round your answers to the second decimal place:

Mass of coal consumed by using 5 devices is XX kg.

Name of Device Energy Consumption Rate (Watts) Estimated Usage in a Day (hours) Amount of Energy Consumed (kWh) Cost of Energy Consumption ($) 1 Hair dryer 710 3 2.13 0.205758 2 Iron 1100 1 1.1 0.10626 3 Printer 13 1 0.013 0.0012558 4 Space heater 1320 24 31.68 3.060288 5 Iphone charger 5 6 0.03 0.002898 Total Energy (kWh) Total Cost ($) 34.95 3.38

Explanation / Answer

Total energy consumed per day by the five device is 39.95 KWh

according to the steps given

Step 1: Proportion of coal is 39.95/ 1,500,000

Step 2: Multipy this with the mass of coal given above so (34.95/1,500,000)X 700,000 = 16.31

Rounded of to 16.31 kg of coal is burnt daily

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