r. chemistryadventure: the textbook

Page 455

Keq =

6. Please determine the direction of the reaction given the following data:

C2H4(g)

+

H2 (g)

a. 1M

2M

b. 1.0520M

C2H6(g)

H = +32kJ/mol

3M

3.0400M

Direction of reaction:______

3.1909M Direction of reaction:______

7. For the reaction below the rate of the forward reaction is equal to the rate of the reverse reaction. Therefore, Keq = ____. Determine the concentration of ethane (C2H6) in the mixture:

C2H4(g) + H2 (g) C2H6(g) 2M

4M

H = +32kJ/mol

?

8. Please determine the direction of the following hypothetical reversible reaction: 4A(g) + 7B(g) + 13C +D (l) 9E (g) + 3F (g)+ 2G (g) Concentrations (M):

1.06

2.12

1.42

3

2.10

1.44

3.26

9. Please determine the concentration of G in the following reaction if it is at equilibrium.

21


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