A home swimming pool contains 145 m3 of water. At the beginning of the swimming season, the water must be heated from 20 to 32°C. How many joules of heat energy must be supplied?

Answer 1

1 m^3 = 1000 L so
145 m^3 = 145,000 L = 145,000,000 mL 145,000,000 grams.
q needed = mass H2O x specific heat H2O x (Tfinal-Tinitial). Substitute and solve for q in J.