A Swimming Pool Heater Has to Be Able to Raise $\degree$

question 6

Multiple Choice

A swimming pool heater has to be able to raise the temperature of the 40 000 gallons of water in the pool by 10.0 C $\degree$ .How many kilowatt-hours of energy are required? (One gallon of water has a mass of approximately 3.8 kg and the specific heat of water is 4 186 J/kg* $\degree$ C. )

• A)1 960 kWh
• B)1 770 kWh
• C)330 kWh
• D)216 kWh

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Definitions:

Sensory Components

Parts of the nervous system that receive and process sensory information from the environment or the body, leading to sensations.

Nasopharynx

The upper part of the throat located behind the nose, which connects the nasal cavity to the mouth and serves as an airway in the respiratory system.

Soft Palate

The flexible part at the back of the roof of the mouth, distinguishing the back of the oral cavity from the nasopharynx.

Pharynx

A muscular tube that connects the mouth and nasal passages to the esophagus and larynx, serving both the respiratory and digestive systems.