Question

CHEM 1212L Lab Manual - Page 86 sf Lab Questions What direction does the reaction shift when product is added to a system at equilibrium? 2. Which direction does the reaction shift when reactant is added to a system at equilibrium? 3. Which direction does the reaction shift when a reactant is removed from a system at equilibrium? 4. What direction does the reaction shift when a product is removed from a system at equilibrium? 5. When a system at equilibrium is disturbed, by changing the concentration of product or reactant, a new equilibrium position will be established. If the concentration of products is increased what happens to the value of the equilibrium constant Ke? 6. Consider the system: aA + bB = 1CD c K + dD [A] [B] If [A] is increased, what happens to If [C] is increased what happens to: [C 7. If in the above system a change is introduced by adding more then the system will react by using and to make _and 8. If in the above system a change is introduced by removing B then the system will react by using and to make and

Answer 1

1) The balance moves towards the reactants (left).

2) The balance moves towards the products (right).

3) The equilibrium moves towards the reactants (left).

4) The balance moves towards the products (right).

5) If the concentration of the products increases, the Kc value increases.

6) If A increases:

B: It decreases

C and D: Increase

If C increases:

A and B: Increase

D: Decrease

7) React A and B to form C and D.

8) React C and D to form A and B.

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