Question

Describe solids liquids and gases in term of the arrangement of their particles and the kinetic molecular theory. What does it take to change from one state to another?

Answer 1

Please I need help

Answer 2

Try write a text your self based on this picture I've uploaded. If you write the text here I can read it for you and discuss it. How does that sound? :)

Answer 3

Yeah thanks

Answer 4

Perfect. Ones done just call me with: @Frostbite :)

Answer 5

Solids particles are closely packed in a regular arrangement the particles vibrates about a fixed position. Liquid particles are closely packed in a random arrangement. The particles can move through the liquids but they cling together. Has the particles are far apart there motion is random and independent of the other particles @Frostbite

Answer 6

More or less correct I would say. gas particles are not 100% independent of each other as they can interact with each other intermolecular interactions. If they are 100% dependent we call them "ideal gases" vs what would otherwise be a "real gas".

So what makes the 3 states significantly different? :)

Answer 7

The arrangement of the particles?

Answer 8

True, what about their velocity in which the particles are moving? is that the same? :)

Answer 9

No gas has a higher velocity than liquid and solid

Answer 10

What's a kinetic molecular theory

Answer 11

The kinetic molecular theory is a theory to try discribe the macroscopic properties, such as pressure and temperature, only using the motion and composition of the system.

So that is basically what is the last part "What does it take to change from one state to another?"

If you want to go from a liquid to a gas, you had to raise the (average) velocity of the particles. You can do this through temperature, by increasing the temperature you increase the kinetic energy, which increases the average velocity of the particles of the system.

Answer 12

Oh okay I kinda getting it now thanks a lot you don't know how much you help me

Answer 13

For example can you from the ideal gas law derive:
\[\Large KE_{avg}=\frac{ 1 }{ 2 }m \langle v \rangle^2= \frac{ 3 }{ 2 }kT\]

Answer 14

No problem at all :)