You just got a new hot tub, but you live in Antarctica and the only source of water you have is
snow. Your hot tub holds 400 gallons of water. It is a particularly cold day and you REALLY want
to use that new hot tub. Your snow is −45°C and you want it to be 39°C (about 102°F). How
much energy (in kJ) do you need in order to get your hot tub set up? Show ALL of your work
and reasoning.