How does matter change from one state to another?

Answer 1

Matter comes in many different forms..... and every type of matter, such as iron or even water, changes states by changing the temperature...... For example.... water.....

At any temperature BELOW zero degrees celcius, water freezes SOLID

At any temperature between 0 and 100 degrees celcius, a water turns into a liquid...

Finally, if you add enough heat so that water reaches 100 degrees celcius or more water begins to evaporate and turn into a gas...

So to do from one state to another you need to add heat or take away heat. Keep in mind that each type of matter changes states at DIFFERENT temperatures... that was only the example for WATER.

Answer 2

CHANGING STATES OF MATTER
Important Points All matter can move from one state to another. It may require very low temperatures or very high pressures, but it can be done. Phase changes happen when certain points are reached. Sometimes a liquid wants to become a solid. Scientists use something called a freezing point to measure when that liquid turns into a solid. There are physical effects that can change the freezing point. Pressure is one of those effects. When the pressure surrounding a substance goes up, the freezing point also goes up. That means it's easier to freeze the substance at higher pressures. When it gets colder, most solids shrink in size. There are a few which expand but most shrink.

Solids and Liquids Now you're a solid. You're a cube of ice sitting on a counter. You dream of becoming liquid water. You need some energy. Atoms in a liquid have more energy than the atoms in a solid. The easiest energy around is probably heat. There is a magic temperature for every substance called the melting point. When a solid reaches the temperature of its melting point it can become a liquid. For water the temperature has to be a little over zero degrees Celsius. If you were salt, sugar, or wood your melting point would be higher than water.

The reverse is true if you are a gas. You need to lose some energy from your very excited gas atoms. The easy answer is to lower the surrounding temperature. When the temperature drops, energy will be sucked out of your gas atoms. When you reach the temperature of the condensation point, you become a liquid. If you were the steam of a boiling pot of water and you hit the wall, the wall would be so cool that you would quickly become a liquid.

Add energy to create plasmaFinally, you're a gas. You say, "Hmmmm. I'd like to become a plasma. They are too cool!" You're already halfway there being a gas. You still need to tear off a bunch of electrons from your atoms. Eventually you'll have bunches of positively and negatively charged particles in almost equal concentrations. When the ions are in equal amounts, the charge of the entire plasma is close to neutral. (A whole bunch of positive particles will cancel out the charge of an equal bunch of negatively charged particles.) A plasma can be made from a gas if a lot of energy is pushed inside. All of this extra energy makes the neutral atoms break apart into positively and negatively charged ions and free electrons. They wind up in a big gaseous ball.

Answer 3

It all depends on the excitement of the atoms and how much they are moving. Heat excites atoms and cold slows them down. In a solid, the atoms aren't moving very much and the harder the substance is, the less the atoms are moving. In a liquid, the atoms start moving more and sliding past each other thus creating the liquid property that we know. Most always liquids are less dense than solids meaning that the atoms are spaced farther apart which also allows the atoms to move more. Gases have a very low density and the atoms are spaced very far apart and move a lot. This is why gases tend to fill all available space and why gases that have a density less than air will rise. This is also why hot air rises; the heat excites the atoms and they become less dense, thus rising above the more dense air.
In short:
level of atom excitement=what state it is in
density is proportionate to level of atom excitement
heat is usually the cause of atom excitement but it can be cause by other forces too.

If anybody finds any mistakes or thinks I'm completely wrong please tell me because this is just coming straight from what I've learned.

Answer 4

Matter is energy and energy is matter through E=MC^2. Even the atoms in solid matter wiggle a bit. If heat is introduced, the atoms start moving around faster and the volume of the solid expands. In the case of ice, a process called sublimation takes water molecules from a solid state to a liquid state to a gaseous state, as the molecules expand and move around more freely.

Answer 5

The matter change from one state to another in different shape and energy

Answer 6

temrerature?

water freezes at 0 c/32 f and evaporates (turns to gas) at a variable temp depending on environment
Because adding heat energy usually results in a temperature rise, people often confuse heat and temperature. In common speech, the two terms mean the same: "I will heat it" means you will add heat; "I will warm it up" means you will increase the temperature. No one usually bothers to distinguish between these. Adding heat, however, does not always increase the temperature. For instance, when water is boiling, adding heat does not increase its temperature. This happens at the boiling temperature of every substance that can vaporize. At the boiling temperature, adding heat energy converts the liquid into a gas WITHOUT RAISING THE TEMPERATURE.Adding heat to a boiling liquid is an important exception to general rule that more heat makes a higher temperature. When energy is added to a liquid at the boiling temperature, its converts the liquid into a gas at the same temperature. In this case, the energy added to the liquid goes into breaking the bonds between the liquid molecules without causing the temperature to change. The same thing happens when a solid changes into liquid. For instance, ice and water can exist together at the melting temperature. Adding heat to an ice-water slush will convert some of the ice to water without changing the temperature. In general, whenever there is a change of state, such as the solid-liquid or the liquid-gas transition, heat energy can be added without a temperature change. The change of state requires energy, so added energy goes into that instead of increasing the temperature.

TOP

the next paragraph is for miss googoo....


"saw it on Mr. Wizard"

Answer 7

Just a couple of examples- when ice melts it changes from a solid to a liquid and fuel can change from a liquid to a gas. The three types of matter includes solids, liquids and gases. Temperature is one way to change a state of matter.

Answer 8

By change in temperature and/or pressure.
Matter can be converted from gas to liquid to solid by increase in pressure or decrease in temperature. The process can also be reversed.

Molecules or atoms are held together by strong forces of attraction. By increasing the temperature we break the bonds holding them together, separating them. By increasing pressure we do the opposite, push them closer to each other.

Answer 9

Changing Temperature DOES NOT CHANGE THE STATE.
Change of state depends on Hidden (Latent) Heat ...Cannot be measured by thermometer.
(Addition or Removal of Sensible Heat changes the temperature ...Heating or Cooling).

Change in state takes place by the Addition or Removal of LATENT HEAT.
(L.H. of Freezing/Melting or of Vaporisation/Condensation).

Answer 10

Molecules can rearrange themselves in such a way that they are more spread apart. Temperature and pressure can cause state changes, and other things such as catalysts, stirring, physical disturbance, etc. can cause the reaction/state change to happen faster.