Chemistry: The Concept of Equilibrium

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Professor Harman explains the concept of equilibrium. In a dynamic equilibrium, though appearing static at the acroscopic level, the forward reaction equals the reverse reaction. To create this type of equilibrium, the system must be closed. This can occur in a chemical system, as well. In chemical equilibrium, the forward and reverse reactions are equal and the concentrations of products and reactants do not change. Professor Harman also explains how you can determine the direction of equilibrium mathematically. To do this, you can look at the partial pressures. As the pressures level out, the system reaches equilibrium. You can also look at the rates of the forward and reverse reactions. When the rates become equal, the system has reached equilibrium. Then, Professor Harman explains that if the equilibrium is disrupted, a new equilibrium will establish in which the overall ratios pf products and reactants are equal. These ratios help to determine the Equilibrium Constant, which reveals the direction of the overall balance of the chemical system.

Taught by Professor Harman, this lesson was selected from a broader, comprehensive course, Chemistry.

Dean Harman is a professor of chemistry at the University of Virginia, where he has been honored with several teaching awards. He heads Harman Research Group, which specializes in the novel organic transformations made possible by electron-rich metal centers such as Os(II), RE(I), AND W(0). He holds a Ph.D. from Stanford University.

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[DudeOhSnaps]

I understood everything he said because of the mustache.

[TheJuga]

Doctor Mario Teaches Chemistry

[kanwarmarok]

Watch Gecko154 for card trick videos

[MrJonkelp]

very interesting thanks

[TheSpikeystuff]

brilliant video

[TDXdz154]

what is that chanting song or sound effect that plays at the beginning and end of the video? i've heard so many times before but i dont know where to find it

[mohsin99950]

thats great!

[happinesson]

chemistry seems simple when i listen to this video! 

[adelle0001]

nice one!

[ReOmiXo3]

so this is only for reversible reactions??

[hameed]

@myacclolable he has a pH.D

[myacclolable]

@TheJuga How would he be a doctor? Arent they called Chemists?