Unit 5: states of matter

States of matter revisited : :

Explaining Diffusion

Explaining gas pressure

Pressure is force per unit area-Aaditya

Diffusion-Mahan Blausen_0315_Diffusion

Higher the temperature, the greater the gas pressure. Nitvesh

Liquid: follows the shape of the container -Sarah Tan

eunice: diffusion happens fastest in gas**

liquid

Particles collide with each other. – Sivani

Speed of diffusion depends on temperature. - Hanson Tan 1200px-Diffusion.svg

Anuj: Gas

Oxygen changes from liquid state to solid state at -218ºC. - Sarah A

  • Can flow

Particles move... energy - Aabir

Can compress

air pressure-Trevor Lim Yong Guan

Take shape of the container

The Spread of Gas - Adam

Warmer Particles diffuse faster than colder ones; they have more energy - Adam

Bani: liquid oxygen boils at -183'C

movement and mixing... - Aabir

eunice; solid particles are tightly packed*Link Title

Difusion happens slowest in solids-Joon

Diffusion in gas = Quickly - Aabir

balloons (good example, gas pressure)- Trevor Lim Yong Guan

Eg; the more you blow into a balloon, the greater air particles would be inside
Anoshka 8G

click to edit

Bani: Robert Brown

Volume=Volume of container

balloon+pressure=expand-Trevor Lim Yong Guan

takes the shape of the container, but it's volume does not change

  • Sara
    download

Explaining density

Particle size and mass affects speed of diffusion.- Hanson Tan

Factors that determine diffusion: Temperature, size and mass of particles, state of matter. – Sivani

cannot be compressed

  • sara
    OGC

Bani: Al-Biruni of Persia

:

Can Flow -Joon

Slightly packed together, but allows small movement (Osmaan)

At higher temperatures, particles move faster than in lower temperatures_Ryan Woon

Anuj: Ice

Solid state - Aabir

Temperature can effect Air Pressure-Adam weather-and-climate-revised-dade-and-duval-22-638

Density of substance depends on: Mass of its particles, how closely packed -Mia

Solid = Fixed shape

Fixed volume

Amzhar: Density is how heavy an object is for its size.

Ice can float; Particles are closer at 0'C

Solid = Cannot be compressed

Speed of diffusion_Ryan Woon

Diffusion happens very slowly (if at all) in solids - Anoshka

Bani: The higher you are (eg mountain) the less air pressure there is the lower you (eg under the sea) the more air pressure there is.

Solid = cannot flow

the equalization of concentration-Trevor Lim Yong Guan

Diffusion happens fastest in a gas. – Sivani

Strong attractive forces between particles

Amzhar: Density is measured in g/cm^3

Diffusion in liquids is slower than gas - Khisshan

Particles are loosely packed. Nitvesh

eunice: liquid has a greater density than gas

(Robert brown: Bani) 220px-Robert_brown_botaniker

Anuj: Density= Mass/Volume

Volume= Height X Length X Width

Solid oxygen (O) = Pale blue!

Amzhar: The formula for density is mass/volume

The lowest temperature an object can reach is -273.15 degrees Celsius - Osmaan Jaka

Density depends on mass of particles and how closely packed particles are. NItvesh

Ice floats on water because it has a lower density -Anoshka

Trevor:

solids=strongest force of attraction-Trevor Lim Yong Guan

solids vibrate on spot-Trevor Lim Yong Guan

Amzhar: Some factors that affect diffusion are mass of solute, temperature of enviroment, density of solvent, etc

Mass (g)

Gas Pressure= the force exerted by gas particles when they collide with one metre square of surface_Ryan Woon.

1200px-Diffusion.svg

gases= weakest force of attraction-Trevor Lim Yong Guan

please DON'T change my work

060917_EC_weyl-fermion_main_free - Trevor Lim Yong Guan

Eg: carbon dioxide, oxygen - Anoshka

Solids = Vibrate on spot

Amzhar: Gas- can be compressed, weak forces of attraction, can flow, etc

Al-Biruni of Persia (bani) download

Oxy

Gas state 2

click to edit

imageJia Quan

click to edit

image

Particles do not move

image

48BDAE59-1F66-4491-8933-F30C4063F1B8

Solids particles - Anoshka

image

image


gas particles = far apart-Trevor Lim Yong Guan

OIP -Trevor Lim Yong Guan

solid particles= close together- Trevor Lim Yong Guan

liquid particles= arranged in an irregular pattern- Trevor Lim Yong Guan

imageJia Quan

click to edit

OIP (1) -Trevor Lim Yong Guan

solids-structure-300x283 - Trevor Lim Yong Guan

click to edit

click to edit

Diffusion= the spreading out and mixing of particles from areas with many particles to areas with fewer particles_Ryan Woon

image Jia Quan

click to edit

We can explain Diffusion using knowledge on particles_Ryan Woon

image

Density=the mass of a substance in a certain volume. A substance with a high density feels heavy for its size_Ryan Woon

image

A force of attraction is any type of force that cause two objects to come together :Stefan

Examples:

Gravitational Force

Electric force also known as electrostatic force

click to edit