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Analysis of a reaction mixture showed that it had the composition 0.417 mol/L N2, 0.539 mol/L H2, and 0.127 mol/L NH3 at 800 K,...Asked by Gabriella
                Analysis of a reaction mixture showed that it had the composition 0.43 mol/L N2, 0.541 mol/L H2, and 0.124 mol/L NH3 at 800 K, at which temperature Kc=0.278 for N2(g) + 3H2(g)<->2NH3(g).
Calculate the reaction quotient Qc
            
        Calculate the reaction quotient Qc
Answers
                    Answered by
            DrBob222
            
    What's the problem Gabriella? You just act like the numbers quoted are equilibrium numbers (they aren't, of course) and what comes out is not the Kc but Qc
    
                    Answered by
            Gabriella
            
    I got an answer of 0.226, now I need to know what the spontaneous direction of change is. It went from 0.278 to 0.226.
    
                    Answered by
            Haley
            
    If Q<K then the reaction will flow from reactants to products. If Q>K then the reaction will flow from the products to the reactants. In this case K=.278 and your Q=.226 so Q<K. The reaction will flow from reactants to products. 
    
                    Answered by
            j
            
    jkj
    
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