a. Consider the following system at equilibrium: D(aq)+E(aq)<=>F(aq) Classify ea

Question

a. Consider the following system at equilibrium:
D(aq)+E(aq)<=>F(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.
Increase D
Increase E
Increase F
Decrease D
Decrease E
Decrease F
Triple D and reduce E to one third
Triple both E and F

b. The following system is at equilibrium:

2X(s)+4Y(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.
add more X
remove some X
double the volume
halve the volume

c. For a certain chemical reaction:

?H=-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.
increase the temperature
decrease the temperature

Explanation / Answer

a. Consider the following system at equilibrium: D(aq)+E(aq)F(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. Increase D ..... right Increase E ...... right Increase F .....left Decrease D ....left Decrease E ....left Decrease F ..... right Triple D and reduce E to one third .... no change Triple both E and F ..... left b. The following system is at equilibrium: 2X(s)+4Y(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. add more X ..... no change as solid remove some X .... no change as solid double the volume ....left halve the volume ...right c. For a certain chemical reaction: ?H°=-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. increase the temperature .... right decrease the temperature .... left

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