E-1 Qualitative Equilibrium Flashcards Preview

Wenger - AP Chemistry > E-1 Qualitative Equilibrium > Flashcards

Flashcards in E-1 Qualitative Equilibrium Deck (31):
1

When a system is at equilibrium, how do the rates of the forward reaction and reverse reaction compare?

They are the same

2

At what time does this system reach at equilibrium?

Q image thumb

Appoximately 5 seconds

3

At what time does this system reach at equilibrium?

Q image thumb

Appoximately 4 seconds

4

Is the value for K for this reactions > 1 or < 1

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More products than reactants so > 1

5

Is the value for K for this reactions > 1 or < 1

Q image thumb

More reactants than products so

6

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if A2B is removed from the system?

 

Right

7

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if A2B is added to the system?

 

Left

8

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if A is added to the system?

 

right

9

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if B is removed from the system?

 

left

10

2 M (s) + N (g) ⇔ M2N (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if some M is added to the system?

 

No Impact - M is a solid

11

2 M (s) + N (g) ⇔ M2N (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if some M is removed from the system?

 

No Impact - M is a solid

12

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if the volume of the contained is decreased?

 

right

13

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if the volume of the container is increased?

 

left

14

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if Neon is added to the container?

 

No Impact

15

X2 (g) + Y2 (g) + heat ⇔ 2 XY (g)

The above reaction is at equilibrium.  Which way will the reaction shift if the volume of the container is increased?

 

No Impact

16

X2 (g) + Y2 (g) + heat ⇔ 2 XY (g)

The above reaction is at equilibrium.  Which way will the reaction shift if the volume of the container is decreased?

 

No Impact

17

X2 (g) + Y2 (g) + heat ⇔ 2 XY (g)

The above reaction is at equilibrium.  Which way will the reaction shift if Argon is added to the container?

 

No Impact

18

2 M (s) + N (g) ⇔ M2N (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if the volume of the container is decreased?

 

No Impact - M is a solid and there is no change in n for the gases.

19

2 M (s) + N (g) ⇔ M2N (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if the volume of the container is increased?

 

No Impact - M is a solid and there is no change in n for the gases.

20

X2 (g) + Y2 (g) + heat ⇔ 2 XY (g)

The above reaction is at equilibrium on a hot plate.  Which way will the reaction shift if the the hot plate is turned up?

 

right

21

X2 (g) + Y2 (g) + heat ⇔ 2 XY (g)

The above reaction is at equilibrium on a hot plate.  Which way will the reaction shift if the the hot plate is turned down?

 

left

22

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium on a hot plate.  Which way will the reaction shift if the hot plate is turned up?

 

left

23

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium on a hot plate.  Which way will the reaction shift if the hot plate is turned down?

 

right

24

2 A (g) + B (g) ⇔ A2B (g) + heat

The above reaction is at equilibrium.  Which way will the reaction shift if a catalyst is added to the container?

 

No Impact

25

Which way will a reaction shift if Q > K?

left

26

Which way will a reaction shift if Q < K?

right

27

During what time frame (or not at all) is Q < K for this reaction?

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0 to 5 seconds

28

During what time frame (or not at all) is Q > K?

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Q is less than K for the first 4 seconds but is not greater than K according to this data

29

Write out the Law of Mass Action for the following reaction?

2 A (g) + B (g) ⇔ A2B (g) + heat

K = [A2B] / [A]2[B]

30

Write out the Law of Mass Action for the following reaction?

2 M (s) + N (g) ⇔ M2N (g) + heat

K = [M2N] / [N]; M is a solid

31

Write out the Law of Mass Action for the following reaction?

X2 (g) + Y2 (g) + heat ⇔ 2 XY (g)

K = [XY]2 / [X2][Y2]