LCP Graphs

LCP Graphs

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Multiple Choice

What change is made to the system at equilibrium

• Increase H2 concentrat

• Increase Temperature

• Increase Pressure

• Catalyst added

Multiple Choice

To return to equilibrium which of the following is predicted by LCP:

• Equilibrium shifts to the left increasing reactants and decreasing products

• Equilibrium shifts to the right increasing reactants and decreasing products

• Equilibrium shifts to the left decreasing reactants and increasing products

• Equilibrium shifts to the right decreasing reactants and increasing products

Multiple Choice

What stress occurs to the system at equilibrium? HINT: Consider you are seeing the system re-establish equilibrium, not just the stress.

• Change in concentration of all chemicals 

• Catalyst

• Change in pressure

• Change in temperature

Multiple Choice

Given the temperature was decreased and considering the shift in equilibrium, is the forward reaction exothermic or endothermic?

• exothermic

• endothermic

Multiple Choice

What change was made to the system at equilibrium?

• Change in concentration

• Change in pressure

• Catalyst added

• Change in Temperature

Multiple Select

Choose all correct explanations for the change. (The graph is the same as previous question.)

• Volume increase

• Volume decrease

• Pressure increase

• Pressure decrease

Open Ended

Explain why no change is expected to the position of equilibrium, despite the change in pressure/volume

Fill in the Blanks

At what time was equilibrium first established? (do not include units)

Open Ended

What change occurred at ~20 seconds?

Multiple Choice

Which direction did the equilibrium shift?

• Forward (left)

• Reverse (right)

Multiple Choice

Which direction did the equilibrium shift?

• Forward (left)

• Reverse (right)

Open Ended

What change occurred at ~40 seconds?

Open Ended

Given there was a decrease in pressure, why did the equilibrium shift right (forward)?

Open Ended

What change occurred at ~75 seconds?

Multiple Choice

Which direction did the equilibrium shift?

• Forward (left)

• Reverse (right)

Open Ended

What change could have occurred at ~110 seconds