Posted by CC on Wednesday, March 24, 2010 at 11:28pm.
Which direction will the following reaction in a 5.0 L flask proceed if
Qp = 0.013?
2H2O(g) = 2H2(g) + O2(g)
Kp = 1.6 x 10-5
Choose one answer.
a. to the right because Q > Kp
b. to the left because Q > Kp
c. to the right because Q < Kp
d. to the left because Q < Kp
e. The reaction is at equilibrium.
Chem - DrBob222, Wednesday, March 24, 2010 at 11:34pm
Kp = (H2)^2(O2)/(H2O)^2 = 1.6 x 10^-5
So if Q = 0.013, that is larger than K which means the numerator is too large and the denominator is too small. So the reaction will shift to make the numerator smaller and the denominator larger. Which way is that?
Chem - CC, Thursday, March 25, 2010 at 10:29am
so it would be Q<K so it would shift from left to right
Chem - DrBob222, Thursday, March 25, 2010 at 11:49am
Absolutely not. The problem and my response CLEARLY says Q = 0.013. Is that larger or smaller than Kc which is 1.6 x 10^-5? It is larger than Kc. How can you possibly think Q<K? (The only way I can think of is that you have the < and > signs confused.) And look at my response again. It says the denominator is too small and the numerator is too large. So the reaction must shift to reverse those numbers; i.e., make the denominator larger and the numerator smaller. The ONLY way it can do that is to shift to the left.
Chem - CAA, Thursday, March 25, 2010 at 4:11pm
My sign was backwards so I typed it in wrong....thanks
Chem - Subzero, Wednesday, May 4, 2011 at 7:24pm
How can one find Q if it is not given with this same kind of problem
Answer This Question
More Related Questions
- Chemistry - Science (Dr. Bob222) - The following reaction has a positive value ...
- someone correct my work please? fun, fun chemistry - Okay. I'm very, very ...
- chem - Predict the direction of the net reaction in each of the following system...
- Chemistry - what is the numerical value of the equilibrium constant Kgoal for ...
- chemistry - Which one of the following is not a redox reaction? PbO2(s) + Pb(s...
- Science - Use the following equation: CO(g) + 2H2 (g)= CH3OH(g) delta H = -21.7 ...
- Chem - Calculate delta H for the formation of one mole of N2O5 from the elements...
- chemistry - For the following reaction in aqueous solution: HNO2(aq) + NO3-(aq) ...
- Chemistry - The Kc for the following reaction at 940oC is 1.38. Given the ...
- Chemistry - 2H2O(g)<-> 2H2(g) + o2 Calculate delta g and Kp for the ...