Entropy is the measure of disorderness. Hot water --> more energy --> less stable --> more disorderness (than Cold water).Therefore, Entropy of Hot water is greater than that of Cold water.
"Density" water is heaver than ice so the ice floats on it. Added: There is a Calvin and Hobbes cartoon in which Calvin poses the question to Dad: "Why does ice float?" Dad responds: "Because it's...
That depends on a lot of things however if you are talking about pure H20 in equal pressure environments then solid H20 (ice) will be colder than liquid H20 (water).
