How Do Coefficient Changes Affect Equilibrium Constants?

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Discussion Overview

The discussion revolves around the effect of changes in coefficients on equilibrium constants, specifically in the context of a given reaction involving carbon monoxide, hydrogen, and methanol. Participants are exploring how to calculate the equilibrium constant for a modified reaction and predict the favored direction at equilibrium.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant presents a specific reaction and its equilibrium constant, seeking guidance on how to adjust the coefficients for a modified reaction.
  • Another participant suggests writing both reaction quotients to explore their relationship, implying a mathematical approach to the problem.
  • A further response asks for clarification on the suggestion to write reaction quotients, indicating a need for more detailed explanation.
  • Another participant proposes writing formulas for equilibrium constants to identify a potential simple operation for conversion between the constants of the original and modified reactions.

Areas of Agreement / Disagreement

There is no consensus yet, as participants are still exploring the problem and seeking clarification on the methods to approach it.

Contextual Notes

Participants have not yet established the specific mathematical relationships or operations needed to convert the equilibrium constant for the modified reaction, and there may be assumptions about the familiarity with equilibrium concepts that are not explicitly stated.

Johnyi
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Homework Statement


The reaction below has a equilibrium constant of Kp = 2.26 x 10^4 at 298 K
CO(g) + 2H2(g) <=>CH3OH(g)

Calculate Kp for each of the reactions and predict whether reactants or products will be favored at equilibrium

A. (1/2)CO(g) + H2(g) <=> (1/2)CH3OH(g)


Homework Equations





The Attempt at a Solution



I know i have to multiply all the coefficients by something..but i just don't know by what. How can i tell?
 
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Write both reaction quotients and see how they are related.
 
Borek said:
Write both reaction quotients and see how they are related.

Im not sure what you mean by this. Can you explain more please
 
Write formulas for equilibrium constants and see if there is no some simple operation that can convert one into the other.
 

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