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What cause change of state?
Changes in temperature and pressure can cause a change in the state of matter. For an example lets consider the process of water boiling to steam. The boiling curve on a phase diagram is the line between the gas and the liquid plotted as function of temperature and pressure, thus to deal with this problem we will fix one quantity, the pressure. Lets assume the pressure is atmospheric, this will mean the water boils at the familiar 100 degrees Celsius. At room temperature (25 Degrees) the liquid doesn't boil but there is an equilibrium between the liquid and its vapour as any molecule with enough kinetic energy will escape (the temperature is just a measure of the average kinetic energy of all the molecules), but in essence the system is in equilibrium and the rate of vapour dissolution is the same as the evaporation. Raising the temperature to 100 degrees Celsius and sustaining it there for the duration of the boiling will provide enough energy to allow all the molecules to escape (although obviously not all at once, they still have individual energies that may or may not be sufficient to allow them to escape). The heat capacity at the boiling temperature becomes infinite meaning all energy supplied breaks the binding of molecules from the water rater than raising the temperature, this is a key condition of a change of state. Okay so to clarify a change of state occurs when the associated curve is met on the phase diagram by any pressure temperature combinations that rests on the curve. Sustain the temperature here will suffice to transform all the matter in one phase into another, like i.e. boiling away a pan of water, you must keep the gas on to boil the whole thing. The key is to always bear in mind that temperature is just a macroscopic average of lots of individual microscopic components (atoms / molecules), each with an accociated energy.
What does the cell membain do in the cell?
the cell membrane functions as a sort of wall that protects the cell and holds everything inside.
What is the difference between sedimentation and decantation?
Sedimentation is the process of particles settling to the bottom of a liquid, typically due to gravity, while decantation is the pouring off of the clear liquid on top after sedimentation has occurred. Sedimentation is a natural process, while decantation is a specific separation technique used to separate the liquid from the solid particles.
How many times does 256 go into 1000?
Lets answer How many times does 256 go into 1000. Lets find out the conversion between 256 and 1000. Lets divide 1000 by 256 . The answer is 3.906 .3.906 times into 256 is 1000.
How do a microscope and telescope differ?
A telescope lets you see things far away and a microscope lets you see see things that are really small
In Mafia Wars Who lets you escape a Boss fight with no penalty?
The Getaway Driver let you escape with no penalty
Is it true or false that alcohol lets heat escape the body?
Alcohol helps heat escape the body.
What word lets out air that starts with e?
You exhale air.
When he lets the Babysitter Bandit escape Homer is referred to as what by the news team?
Local Boob
What process lets substances spread through a gas or liquid?
diffusion
How does a septic work?
any thing that goes down the drain enters the septic tank, the tank allows the solids to settle out and lets the fluids move into the drainfield, the drainfield then allows the soils to absorb the liquid
What is pippet?
A pippet is a piece of equipment used to add liquid to something. You squeeze the top and it lets a drop of liquid out of the end.
What is something that starts with d and ends with e?
Ummm. lets see.... Dude is one!
What starts with a p and ends with orn?
Some people think its popcorn but lets be honest, its porn
What starts with P and ends with Orn?
Some people think its popcorn but lets be honest, its porn
What is the thing in your eyes that lets us see color?
The cone cells.
What is a song that starts with lets make a movie staring you and me by chris brown?
The name of the the song is Make A Movie.
