by 
Anonymous
ANSWERS: 7
-
Because when water is hot, the molecules are hot so they want to get away from each other and expand. Also as temperature rises, the molecules go crazy in the sense that they move faster. That's why when water is heated, it rises, and boils.
-
The reason hot water rises is because heating up the water gives each of its molecules more kinetic (or motion) energy. This energy causes the molecules to spread apart. When the molecules spread apart, the density of the water decreases (fewer molecules per unit of volume). Less density means that heated water is lighter than an equal volume of cold water. The lighter heated water thus rises to the top of the containter and the heavier colder sinks to the bottom.
-
Liquids and gasses both rise when heated. When water is heated, energy is added to the molecules and they start vibrating and bumbing into each other and pushing each other farther apart. The water expands, becomes less dense, that is there is still the same mass of water but it has a larger volume. ( It 'weighs' the same but takes up more room.) The theory of bouyancy ( extremly simplified) sez that something that is less dense will float on a more dense gas or liquid. The hot liquid or gas is floating on cooler water.
-
Simple answer: It's excited (more energy)
-
Hot water is less dense than cold water...hence it floats
-
The reason hot water rises is because heating up the water gives each of its molecules more kinetic (motion) energy. This energy causes the molecules to spread apart. When the molecules spread apart, the density of the water decreases. Therefore there are fewer molecules per unit of volume. Less density means that heated water is lighter than an equal volume of cold water. The lighter heated water therefore rises to the top of the container and the heavier colder sinks to the bottom.
-
The lighter heated water therefore rises to the top of the container and the heavier colder sinks to the bottom.
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC