Question

Approximately how much electricity can be generated when 1 kg of coalis converted to electrical energy in
a power plant?
a) 0 2 units
b) 1.2 units
c)22 units
d)3.2 units ​

Answer 1

Answer:

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Explanation:

But even the best power station is not much better than about 30% efficient, so 1 kg of coal burnt will give you 0.3 x 7 = 2 kWh of electrical energy.