A New Diet Fad Has Just Arrived! the Idea Is

question 45

Short Answer

A new diet fad has just arrived! The idea is to drink cold water; the body has to burn up glucose to furnish the energy to warm the water to body temperature. OK, so let's see if this idea is reasonable. How many liters of water at 5°C would one have to drink to metabolize 1 kg (2.2 lbs) of glucose and lose that much weight? Body temperature is 37°C. Glucose is C₆H₁₂O₆ (180 g/mol), and the enthalpy change for the metabolism of glucose is -2,802 kJ/mol.

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Definitions:

Supply and Demand

The fundamental economic model describing how prices vary as a result of a balance between the quantity of a good or service available and the quantity desired by consumers.

Real Price

Price of a good relative to an aggregate measure of prices; price adjusted for inflation.

Supply Curve

A graphical representation that shows the relationship between the price of a good or service and the quantity of that good or service that a seller is willing and able to supply, usually depicted as upward sloping.

Real Price

The price of a good or service after adjusting for inflation, reflecting its true purchasing power over time.