When you boil water, what happens that allows the liquid to turn into gas?

Answer 1

Because of gravity, molecules tend to all fall down towards the earth. More significantly, intermolecular forces (forces between molecules) pull them together; kind of like little magnets.

When you heat water you are putting kinetic energy into the molecules. That is, the energy of motion.

Imagine a bunch of marbles that are all slightly magnetic. They pull together and bunch up, right?

But what happens when you smack them with your hand? Then they start moving around and they break their bonds...but they don't go very far since they're still being pulled back together again. Think of the planets; they're moving pretty quickly but they don't go far because they're being pulled back together, mostly by the sun.

But what happens if you hit those marbles REALLY hard? Then they'll go flying all over the place. Up in the air, against the walls, and out the window.

This is similar to what you are doing when you boil water. The molecules are being knocked around so fast that they fly up into the air. They are now moving SO fast that even though they are attracted to each other they whip by SO fast that it hardly has time to affect it. This is what we call the gas phase.

Answer 2

The molecules have energy. When they are in a liquid, they pull on the neighboring molecules and they are pushed together by the pressure of the atmosphere.

As you heat the liquid the molecules get more energy. Eventually, they have enough to break free of the attraction from the other molecules and can push back against the atmospheric pressure.

Water's boiling point of 100 oC is only true at exactly 1 atmosphere of pressure. If the pressure is lower (such as on a mountain top) the boiling point will be lower as well.

That's when they become a gas.

Answer 3

while u with the aid of a ball in area it is going to fall in the floor. What area u r speaking approximately ? If the area around u no longer something will happen, If the area the area in the universe the place temperature is extremely low the water will already be frozen in trans transportation time then additionally no longer something will happen while u open the cap of the bottle.

Answer 4

*...(At Standard Atmospheric Pressure), increasing the temperature of water by the addition of 'Sensible Heat (Heating)', when it reaches its Boiling point of 100°C the 'Kinetic Energy' of the molecules has Increased and, they BEGIN to leave the surface of the liquid as Vapour but, it's temperature doesn't increase any further no matter how much heat you add.
*...However, continued addition of heat, called 'Latent Heat of Vaporisation' will increase the Kinetic Energy further and the water Vaporises (Changes STATE) and, its temperature stays at 100°C until ALL of the water has vaporised.
*...Addition of still more heat (Sensible Heat) will now increase the K.E. even further and the TEMPERATURE of the steam will now increase.

Answer 5

Water's boiling point is 100 degrees C
Whenever a substance reaches it's boiling point, it turns into a gas.