Sample Problem 17.10
SOLUTION:
Predicting reaction direction and calculating equilibrium concentrations
In one experiment, 1.00 mol of CH4, 1.00 mol of CS2, 2.00 mol of H2S and 2.00 mol of H2 are mixed in a 250 mL vessel at 960 oC. At this temperature, Kc = 0.036.
(a) In which direction will the reaction proceed to reach equilibrium?
(b) If [CH4] = 5.56 M at equilibrium, what are the equilibrium concentrations of the other three substances?
[CH4]initial = 1.00 mol/0.25 L = 4.00 M
[H2S]initial = 2.00 mol/0.25 L = 8.00 M
[H2]initial = 2.00 mol/0.25 L = 8.00 M
[CS2]initial = 1.00 mol/0.25 L = 4.00 M
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