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

AI Thread Summary
The discussion centers on calculating the equilibrium constant Kp for hydrogen (H2) and carbon monoxide (CO) in a reaction involving steam and carbon at 1800 kPa. The partial pressure of steam at equilibrium is given as 318 kPa, leading to confusion about how to determine the initial moles of H2. Participants clarify that to find the partial pressures of H2 and CO, one must subtract the partial pressure of steam from the total pressure. The calculation suggests that the remaining pressure, 1482 kPa, is to be divided between H2 and CO, but the method for doing so is debated. This highlights the complexities involved in solving partial pressure problems in equilibrium chemistry.
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?
 
Thread 'Confusion regarding a chemical kinetics problem'

Thread 'Confusion regarding a chemical kinetics problem'

TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
View full post »

Thread 'Prove that evolution is constant (Provide at least two arguments to support your position)'

I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...
View full post »

Similar threads

Chemistry Decomposition of C5H6O3 equilibrium
Replies
1
Views
3K
Chemistry Equilibrium Partial Pressures
Replies
3
Views
2K
Pressure equilibrium -- I am getting my math wrong somewhere
Replies
1
Views
2K
Chemistry A calculation of equilibrium constant of a reaction of phosgene
Replies
7
Views
1K
What is the partial pressure of ammonia at equilibrium?
Replies
2
Views
2K
Finding Kp given the final equilibrium pressure
Replies
1
Views
5K
Proving Kp will remain constant if total press. is doubled
Replies
2
Views
2K
Calculating concenteration at equilibrium
Replies
2
Views
2K
Chemistry Ideal Gas Law and Partial Pressures
Replies
16
Views
3K
Solve Kinetics Question: Zero Order Reaction at High Pressure
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top