A Certain Humidifier Operates by Raising Water to the Boiling $\degree$

question 79

Multiple Choice

A certain humidifier operates by raising water to the boiling point and then evaporating it. Every minute 30 g of water at 20 $\degree$ C are added to replace the 30 g that are evaporated. The heat of fusion of water is333 kJ/kg, the heat of vaporization is 2256 kj/kg, and the specific heat is 4190 J/kg .K.How many joules of energy per minute does this humidifier require?

• A) 4800
• B) 18,600
• C) 16,200
• D) 24,600
• E) 2400

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Definitions:

Standard Deviations

A measure of the amount of variation or dispersion of a set of values from the mean or average.

Independent

Free from external control or influence; not depending on another's authority or the occurrence of another variable in statistical contexts.

Standard Deviations

A metric that calculates the extent of spread or deviation of data points from their average value.

Independent

Free from outside control or influence, able to make decisions or act according to one's own principles.