A 18-M² Thermopane Window Is Constructed,using Two Layers of Glass 5

question 8

Multiple Choice

A 1.8-m² Thermopane window is constructed,using two layers of glass 5.0 mm thick,separated by an air space of 6.0 mm.If the temperature difference is 22 °C from the inside of the house to the outside air,what is the rate of heat flow through this window? (Thermal conductivity for glass is 0.84 J/s⋅m⋅°C and for air 0.023 4 J/s⋅m⋅°C. )

• A) 1,800 W
• B) 300 W
• C) 2250 W
• D) 150 W
• E) ​1,500

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Definitions:

Adam Smith

A Scottish economist and philosopher, widely known as the father of modern economics, best known for his theory of the invisible hand and the book "The Wealth of Nations."

Opportunity Cost

The outcome of selecting an alternative is the exclusion of potential benefits that could have been achieved with other selections.

Equilibrium Output

The level of output at which the quantity supplied equals the quantity demanded, leading to a stable market condition without surplus or shortage.

Purely Competitive Market

A theoretical market structure characterized by an infinate number of buyers and sellers, homogeneous products, and no barriers to entry or exit.