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HW 6 LeChatelier's Principle

1. Le Chatelier Concentration

2 Le Chatelier Volume

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Due Jun 22 at 11:55 PM

1 pts 2req

3. Le Chatelier Temperature

4: Le Chatelier. Enda or Exothermic 1 pts req

5. Le Chatelier: Summary True/False 1 pts 2req

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1 pts 2req

1 pts 2req

[Review Topics]

Raterences)

Use the References to access important values if needed for this question.

Consider the following system at equilibrium where AH = 92.7 kJ and Ke = 1.80 x 104, at 298 K.

NH, HS(s) NH3(g) + H₂S(g)

The production of NH3 (g) is favored by (indicate true or false);

increasing the temperature:

increasing the pressure (by true the volume): [ v

false

V

decreasing the volume:

adding NH₂ HS

removing H₂S:

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725/nHWS LeChateller's Principle

1. Le Chatelier Concentration

CADAS

1 pts 2req

2 Le Chatelier Volume

1 pts 2req

3. Le Chatelier: Temperature

1 pts 2req

4. Le Chatelier Endo or Exothermic

1 pts req

5. Le Chatelier Summary True/False 1 pts 2req

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Change

Reactant

[Review Topics]

Le Chatelier's Principle: Summary

A change in any of the factors that determine the equilibrium conditions of a system will cause the system to change in such a mann

as to reduce or counteract the effect of the change.

Factors

1. Concentration Product

2. Temperature T

References)

Consider Direction to Reach Equilibrium

Forward

Reverse

Forward

Reverse -

AH> 0

AH<0

Angas > 0

3. Volume 1 V (P decreases) Angas <0

Angas

<=0

If you reverse any of the Changes above, the Direction to Reach Equilibrium reverses.

Forward

Reverse

No effect

K increases

K decreases

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Fig: 1

Fig: 2