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Le Chateleir`s Principle

Please check if my answers are right and i dunt know some of them:

Consider the following system at equilibrium:

A(aq)+B(aq) <---> 2C(aq)

Classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction.

1.Increase A- Right
2.Increase B- Right
3.Increase C- Left
4.Decrease A- Right
5.Decrease B- Right
6.Decrease C- lEft
7.Double A and Halve B- NO Shift
8. Double both B and C- NO shift

2.The following system is at equilibrium:

X(s) +3Y(g)<---> Z(g)}

Classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction.

1.Decrease the Volume
2.Increase the Volume
3.Add more X- Right
4.Remove more X- Left

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10 answers

  1. on the first, 4,5,6 are wrong. Think out why.

    on the second, YOu did not show any thinking on 1,2. Right on 3,4

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    👤
    bobpursley
  2. Bob Pursley and I have agreed that the answer to 3 and 4 on #2 should be no change since X is a solid. Adding or removing X will not change the concentration.

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  3. Thank you i got it

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  4. Classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction.

    N2(g)+ O2(g)=2NO(g)

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  5. For a certain chemical reaction, ΔH∘=−156kJ. Assuming the reaction is at equilibrium, classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction.

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  6. The following system is at equilibrium:
    A(s)+4B(g)⇌C(g)
    Classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction. (Add more A)(Remove some A)(Double the volumen)(Halve the volumen)

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  7. Leftward Shift- double the volume
    Rightward shift- half the volume
    No shift - remove A and add A

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  8. I have agreed with John on the volume X questions.

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  9. For the chemical reaction ◇H=-156kJ

    Increase temp- left
    Decrease temp- right.

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  10. For the reaction
    N2(g)+O2(g)⇌2NO(g)

    classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the reaction.

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