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