Wednesday
October 22, 2014

Homework Help: Chemistry

Posted by Joe on Wednesday, January 31, 2007 at 12:40pm.

Which statement about Kc is wrong?
A. Kc is always a constant
B. For some reactions, Kc increases with temperature increase
C. For some reactions, Kc decreases with temperature decrease
D. For some reactions, Kc changes when pressure is changed




A is incorrect. Kc stays constant for concentration and pressure changes but not for temperature changes.

B and C are correct.

D is incorrect. It is true that a system at equilibrium may be made to shift one way or another (for some reactions) by changing the pressure, BUT, Kc will not change.

I note that the question asks which statement (not statements) are wrong.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - Explain why each of the following is incorrect: (a) Entropy ...
ap chemistry - Some reactions that are predicted by their sign deltaG to be ...
Chemistry - 1. Reactions follow the law of conservation mass.- T? 3. In a ...
chemistry - 2 NO2(g) N2(g) + 2 O2(g) The ΔH for the reaction above is -66....
Pchem - 2 NO2(g) N2(g) + 2 O2(g) The H for the reaction above is -66.4 kJ. ...
chemistry(check my answers please) - 1)An increase in temperature ____________ ...
Chem - Consider the exothermic reaction CoCl42-(aq) + 6 H2O(l) --> Co(H2O)62...
Chemistry 12 - 4. a. Using Le Chatelier's principle, what effect will an ...
biology - What are coupled reactions? Describe the interactions between enzyme, ...
Chemistry - 3. Which oxidation-reduction reactions are best balanced by the half...

Search
Members