Assume That an Extremely Inefficient Electrical Utility Company Delivers Electrical

Assume that an extremely inefficient electrical utility company delivers electrical energy to your home from a natural gas-burning power plant with an overall efficiency of only 21% and your furnace is 100% efficient in converting electrical energy into heat energy.What mass of natural gas must be burned by the power plant if heating your home requires 3.5 × 10⁷ kJ? The heat of combustion of natural gas is 50.1 kJ/g.

A) 1.5 × 10⁵ g
B) 3.3 × 10⁶ g
C) 3.7 × 10⁸ g
D) 8.4 × 10⁹ g

Correct Answer:

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