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Chemistry Music Video 23: Stress, Shift, Change In Concentration

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Uploaded on Aug 30, 2009

This song explains how equilibria are affected by placing a stress on it. Le Chatelier's Principle for all! All music and lyrics copyright 2005 by Mark Rosengarten. All rights reserved.

Lyrics:

To and fro, forwards and back,
Simultaneous it flows
Reactants becoming products
At the same rate reverse goes

It goes forever, system closed
Nothing gets in or out
But once the systems opened,
You might hear this shout!

Stress! Shift! Change in concentration!
Stress! Shift! Change in concentration!
Le Châteliers is so much fun
Equilibrium shift for everyone!

If you add reactant
Collisions more between
It shifts towards the product side
Product increase is seen!

If you add a product
Collisions will improve
Shift is towards reactant side
And products are removed!

If the concentration goes down
Whichever one you choose
Then the shifts the other way
Towards whatever you remove!

Stress! Shift! Change in concentration!
Stress! Shift! Change in concentration!
Le Châteliers is so much fun
Equilibrium shift for everyone!

If you raise the temperature
Shift endothermically
Move away from the side with heat
And you will surely see!

If you cool the system down
Its an exotherrmic shift
Slide towards the side with heat
The temperature will lift!

If you raise the pressure
The side with less gas will score
If, instead, you lower P
Shift to the side with more!

Stress! Shift! Change in concentration!
Stress! Shift! Change in concentration!
Le Châteliers is so much fun
Equilibrium shift for everyone!

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