A hot tub is filled with 460 gallons of water, which has a density of 1.0 . What is the volume of water in the tub, in liters? What is the mass, in kilograms, of water it contains?How many kilocalories are needed to heat the water from 63 to 108? If the hot-tub heater provides 1500 per minute, how long in hours will it take to heat the water in the hot tub from 63 to 108?