What is the Kp of H2 and CO in a Partial Pressure Problem?

Click For Summary

Discussion Overview

The discussion revolves around calculating the equilibrium constant Kp for the reaction involving steam, carbon, hydrogen, and carbon monoxide under specific conditions of partial pressures. The context is a homework problem that requires understanding of gas laws and equilibrium concepts.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant states the reaction and provides the initial conditions, expressing confusion about how to proceed with only one known value.
  • Another participant suggests that knowing the partial pressure of one component allows for the calculation of the other component's partial pressure by subtracting from the total pressure.
  • A subsequent reply questions whether the remaining pressure should be divided equally among the products.
  • A later response clarifies that the calculation for Kp involves subtracting the known partial pressure from the total pressure, proposing a value of 1482 for Kp.

Areas of Agreement / Disagreement

The discussion shows some disagreement regarding the method of calculating the partial pressures and Kp, with no consensus reached on the correct approach or final values.

Contextual Notes

Participants have not established all necessary initial conditions or assumptions for the calculation, and there is uncertainty regarding the distribution of partial pressures among the products.

lionely
Messages
574
Reaction score
2

Homework Statement


when steam was heated with excess carbon in a closed container to 1800kpa, the partial pressure of steam at equilibrium of steam was 318kpa, find Kp H2
,Kp CO and find Kp

Homework Equations



H2O(g) + C(s) -> H2(g) + CO(g)
<-

The Attempt at a Solution



I'm so confused because I only have 1 value,

I tried to find the initial moles of H2 but I can't.

Help is much appreciated.
 
Physics news on Phys.org
If you know the partial pressure of one component, then the partial pressure of the other component must be the total pressure - partial pressure of the first component.
 
They I would just divide it equally among them?
 
No. Read my post again.
 
So the Kp of H2 and CO would be

1800-318= 1482?
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 3 ·
Replies
3
Views
3K
Replies
1
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 1 ·
Replies
1
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 16 ·
Replies
16
Views
4K
Replies
3
Views
2K