A typical home in the northern U.S. might require 120 MBtu of heat for the average winter.
If this heat were supplied by a natural gas furnace operating at 60 percent efficiency, how many cubic feet of gas would need to be purchased?

As provided in the question, heat supplying natural gas furnace operates at 60% efficiency. It means that out of 100 units of heat energy produced by the furnace, only 60 units of heat can be transferred.

Thereby as the demand of the heat energy is 120 MBtu, amount of gas that needs to be purchased equals-

∴ 60% of (cubic metres of gas that needs to be purchased) = 120 MBtu

⇒ (60/100) * gas = 120

⇒ Gas= 120*100/60

∴ Cubic metres of gas that needs to be purchased= 200MBtu

lhmarianateixeira lhmarianateixeira · Answer 2 · 2025-03-27T15:32:27-04:00

In this exercise we have to use the knowledge of area to calculate how many cubes will be necessary to buy. Therefore we can say that:

200 MBtu of heat

As supported fashionable the question, heat supplying oil heating mechanism operates at 60% efficiency. It wealth that out of 100 part of heat generated power produced for one heating mechanism, only 60 units of heat maybe moved, so we can say that:

[tex]60\% = 120 MBtu\\(60/100) * gas = 120\\ Gas= 120*100/60= 200 MBtu[/tex]

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A typical home in the northern U.S. might require 120 MBtu of heat for the average winter. If this heat were supplied by a natural gas furnace operating at 60 percent efficiency, how many cubic feet of gas would need to be purchased?

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A typical home in the northern U.S. might require 120 MBtu of heat for the average winter.
If this heat were supplied by a natural gas furnace operating at 60 percent efficiency, how many cubic feet of gas would need to be purchased?