Hot is the heavier molecule.
lil Wayne
Hot air rises, so is lighter than cold air.
cold air is heavier than hot air so the cold air gos to the hot air where theirs less pressure
You are wrong ! - Cold water is heavier ( denser ) than hot water.
cold water is much heavier than hot water . the water becomes warm
no cold air is heavier because it sinks and hot air rises
Gas is heavier than oxygen. Cold air is heavir than hot air
Hot air. Because it always rises above cold
It is not heavier, it is "denser" that is because its molecules move around less and thus take up less space.
Cold air is heavier
Given an identical volume of both to begin with (say, one gallon hot water, and one gallon cold water) they will be identical in weight. However, cold water is more dense than hot water.
Hot and cold water can separate due to differences in their temperature and density. When hot and cold water are combined, the hot water tends to rise to the top because it is less dense than the colder water below. This process is known as thermal stratification.