Particles in action
This presentation is the property of its rightful owner.
Sponsored Links
1 / 17

Particles In Action PowerPoint PPT Presentation


  • 76 Views
  • Uploaded on
  • Presentation posted in: General

Particles In Action. Lesson 1: Absolute Zero. Learning Objectives: describe the term absolute zero convert between Kelvin and Celsius scales of temperature describe how the temperature of a gas relates to the speed and kinetic energy of its particles

Download Presentation

Particles In Action

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Particles in action

Particles In Action


Lesson 1 absolute zero

Lesson 1: Absolute Zero

Learning Objectives:

  • describe the term absolute zero

  • convert between Kelvin and Celsius scales of temperature

  • describe how the temperature of a gas relates to the speed and kinetic energy of its particles

  • recognise that the Kelvin temperature of a gas and the average kinetic energy of its particles are directly proportional.


Starter

Starter

  • Draw the particles in a solution which has been heated and one that is cold.


Kinetic theory model

Kinetic Theory Model

  • Change your movement according to the volume.


Particles in action

  • Absolute zero exists at -273oC


Particles in action

http://www.visionlearning.com/library/module_viewer.php?c3=1&mid=48&l=


Celsius to kelvin

Celsius to Kelvin?

To change 100 °C into Kelvin just add 273.

So 100 °C = (100 + 273) K = 373 K.

What are the following temperatures in Kelvin?

0 °C, 20 °C, 37 °C, 500 °C, -5 °C, -169 °C


Kelvin to celsius

Kelvin to Celsius?

To change 100 K into Celsius just subtract 273.

So 500 K = (500 - 273) K = 227 °C.

What are the following temperatures in Celsius?

0 K, 200 K, 300 K, 1 000 K


Making thermometers

Making Thermometers

  • Fill a bowl with crushed ice.

  • Put a little coloured dye in the flask, then fill it to the top with crushed ice. Stand it in the bowl with crushed ice and leave it for 15 mins.

  • Push the rubber bung on, and mark the level of the risen liquid.

  • Then put the flask into a water bath and leave for 15 mins.

  • Mark the new level.

  • Divide the distance between the two marks into 5 equal divisions. Each division will represent 10 degrees.

  • Leave the flask on the bench for 15 mins, and mark the new level.


Particles in action

How would you describe this relationship?


Particles in action

Summary

At __________ (–273 ºC or 0 K) particles __________ moving. You convert ºC to K by adding __________. Increasing the __________ increases the speed of the particles. The _________ in a gas are continually colliding with each other. The kelvin temperature and the average __________ energy of the particles are directly __________ to each other (i.e. double the __________ temperature, __________ the kinetic energy).

273absolute zerodoublekelvin

kinetic particles proportional stop temperature


Plenary

Plenary

  • Explain how we can move from degrees Celsius to degrees Kelvin and back again


Plenary1

Plenary

  • Explain how we can move from degrees Celsius to degrees Kelvin and back again

  • Explain why this weather balloon is released when more gas could be added


Particles in action

http://www.chem.ufl.edu/~itl/2045/MH_sims/ideal_nav.swf


Charles law simulation

Charles Law Simulation

http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/gaslaw/charles_law.html


Kinetic theory model1

Kinetic Theory Model

http://www.practicalphysics.org/go/Experiment_365.html


Particles in action

http://penguincentral.com/pics/gallery/S-131/96ilc31k.jpg


  • Login