A Swimming Pool Heater Has to Be Able to Raise

question 5

Multiple Choice

A swimming pool heater has to be able to raise the temperature of the 30,000 gallons of water in the pool by 10.0°C.How many kilowatt-hours of energy are required? (One gallon of water has a mass of approximately 3.79 kg and the specific heat of water is 4186 J/kg · °C. )

• A) 1960 kWh
• B) 1320 kWh
• C) 1130 kWh
• D) 216 kWh

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