Question

1- At a certain temperature, 0.820 mol of SO3 is placed in a 2.50-L container.

2SO3(g)---->2SO2(g)+O2(g)

At equilibrium, 0.120 mol of O2 is present. Calculate Kc.

2- At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3.

H2(g) + I2(g)----->2HI(g)

At this temperature, 0.300 mol of H2 and 0.300 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present at equilibrium?

3-Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is

S2(g) + C(s) ----> CS2(g) Kc=9.40 at 900K

How many grams of CS2(g) can be prepared by heating 20.3 moles of S2(g) with excess carbon in a 9.85 L reaction vessel held at 900 K until equilibrium is attained?

Answer 1