Assume That an Extremely Inefficient Electrical Utility Company Delivers Electrical

question 9

Multiple Choice

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

---

Definitions:

Fleet Repair Facility

A dedicated center for the maintenance and repair of a collection of vehicles, ensuring they remain operational and safe.

Utilization

The extent to which a resource, such as equipment or labor, is being used effectively, typically expressed as a percentage of total available capacity.

Efficiency

The ratio of the output generated to the input used, expressing the effectiveness of a system or process in utilizing resources.

Break Even

The point at which total revenues equal total costs, resulting in no profit or loss.