It takes 41.7 Btus to heat a 5 gallon jug of water. What is the density of a gallon of water?

Answer: The density of a gallon of water will therefore = 3.79 kg/m^3

Step-by-step explanation:

1 liquid gallon = 0.00379 cubic metre

5 gallons = 5 * 0.00379 cubic metre

5 gallons = 0.01895 m^3

Since the liquid is water and density of water is approximately 1000 kg per cubic meters

The density of 5 gallons of water will be 1000 * 0.01895 = 18.95 kg/m^3

The density of a gallon of water will therefore equal to 1000 * 0.00379 = 3.79 kg/m^3