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Chemical Equilibrium Constant Calculation

  • #1

Homework Statement



If Q = 1.0 1042 for the reaction C(s) + O2(g) → CO2(g) at 25°C, calculate Keq.

dGof (Kj/mol) of...
C(s)=0
O2(g)=0
CO2(g)=-394.36

Homework Equations


dGorxn = -R*T*ln(K)


The Attempt at a Solution



-394.36*1000 = -8.314472(298)ln(K)
K=1.3e69

This is the wrong answer. I'm lost as to what to do. Please help.
I might be using the wrong equation for the situation. The only information I was given was in the problem statement.
 
Last edited:

Answers and Replies

  • #2
Borek
Mentor
28,402
2,801
What is Q? How is it related to Keq?
 

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