A) 8.00 mol NH3 are placed in a 10.0 L container at some temperature and allowed to come to equilibrium as per the reaction below. At equilibrium, 2.00 moles remained. What is the value of Kc for the following reaction at the temperature of the experiment? (Hint : Since the question asks for Kc, use molarities in your reaction table.)

2 NH3(g) reverse reaction arrow N2(g) + 3 H2(g)
WebAssign will check your answer for the correct number of significant figures.

B) 4.00 mol CO2 is placed in a 6.00 L container at a temperature where 12.3% of it decomposes. What is the value of Kc for the following at this temperature? (Hint : Since the question asks for Kc, use molarities in your reaction table.)

2 CO2(g) reverse reaction arrow 2 CO(g) + O2(g)