Pproducts PReactants PH₂ PIZ hp- hp= (PHI)2 1.34-10 = (0.45 +0) (1.17+p) t1.51-212 1.34-10--/151-701² (1 Dr. Dahm is attempting to store a sample of HI. Little does he realize that there exists an equilibrium between HI, I, and H₂. If he starts with an initial pressure of HI of 1.51 atm, H₂ of 0.45 atm and I₂ of 1.17 atm find the pressures at equilibrium. K for this reaction is 1.34 10¹ calculate the pressure of I, and H, when the reaction comes to equilibrium. 2 HI 1.51 Initial Change-2p Equilibrium-1.51-2p - Solving Equilibrium atm H₂ + 1₂ 0.45 alm +p 045+p 1.17 QAm +P 1.17-p
Pproducts PReactants PH₂ PIZ hp- hp= (PHI)2 1.34-10 = (0.45 +0) (1.17+p) t1.51-212 1.34-10--/151-701² (1 Dr. Dahm is attempting to store a sample of HI. Little does he realize that there exists an equilibrium between HI, I, and H₂. If he starts with an initial pressure of HI of 1.51 atm, H₂ of 0.45 atm and I₂ of 1.17 atm find the pressures at equilibrium. K for this reaction is 1.34 10¹ calculate the pressure of I, and H, when the reaction comes to equilibrium. 2 HI 1.51 Initial Change-2p Equilibrium-1.51-2p - Solving Equilibrium atm H₂ + 1₂ 0.45 alm +p 045+p 1.17 QAm +P 1.17-p
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter17: Chemical Equilibrium
Section: Chapter Questions
Problem 34A
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![# Solving Equilibrium
Dr. Dahm is attempting to store a sample of HI. Little does he realize that there exists an equilibrium between HI, I₂, and H₂. If he starts with an initial pressure of HI of 1.51 atm, H₂ of 0.45 atm and I₂ of 1.17 atm, find the pressures at equilibrium. The equilibrium constant (K) for this reaction is 1.34 x 10⁻². Calculate the pressure of I₂ and H₂ when the reaction comes to equilibrium.
### Reaction
\[ 2 \text{HI} \rightleftharpoons \text{H}_2 + \text{I}_2 \]
### Initial Pressures
- \( \text{HI} = 1.51 \, \text{atm} \)
- \( \text{H}_2 = 0.45 \, \text{atm} \)
- \( \text{I}_2 = 1.17 \, \text{atm} \)
### Change in Pressures
- Change for \( \text{HI} = -2p \)
- Change for \( \text{H}_2 = +p \)
- Change for \( \text{I}_2 = +p \)
### Equilibrium Pressures
- \( \text{HI} = 1.51 - 2p \)
- \( \text{H}_2 = 0.45 + p \)
- \( \text{I}_2 = 1.17 + p \)
### Calculations
- Use the equilibrium constant \( K = 1.34 \times 10^{-2} \) to solve for the pressures:
\[
K = \frac{(0.45 + p)(1.17 + p)}{(1.51 - 2p)^2}
\]
Solve for \( p \) and substitute back to find the equilibrium pressures for \( \text{H}_2 \) and \( \text{I}_2 \).
---
### Additional Problem
Dr. Dahm wants to make \( \text{N}_2\text{O} \) so he reacts \( \text{N}_2 \) with \( \text{O}_2 \) to give \( \text{N}_2\text{O} \). Unfortunately, this is an equilibrium process that has a K](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4ef19cdf-d917-4e85-90d1-e182276b5042%2F9018f128-1ae4-4fc2-851f-34437ab8e6f9%2Fvztcls_processed.jpeg&w=3840&q=75)
Transcribed Image Text:# Solving Equilibrium
Dr. Dahm is attempting to store a sample of HI. Little does he realize that there exists an equilibrium between HI, I₂, and H₂. If he starts with an initial pressure of HI of 1.51 atm, H₂ of 0.45 atm and I₂ of 1.17 atm, find the pressures at equilibrium. The equilibrium constant (K) for this reaction is 1.34 x 10⁻². Calculate the pressure of I₂ and H₂ when the reaction comes to equilibrium.
### Reaction
\[ 2 \text{HI} \rightleftharpoons \text{H}_2 + \text{I}_2 \]
### Initial Pressures
- \( \text{HI} = 1.51 \, \text{atm} \)
- \( \text{H}_2 = 0.45 \, \text{atm} \)
- \( \text{I}_2 = 1.17 \, \text{atm} \)
### Change in Pressures
- Change for \( \text{HI} = -2p \)
- Change for \( \text{H}_2 = +p \)
- Change for \( \text{I}_2 = +p \)
### Equilibrium Pressures
- \( \text{HI} = 1.51 - 2p \)
- \( \text{H}_2 = 0.45 + p \)
- \( \text{I}_2 = 1.17 + p \)
### Calculations
- Use the equilibrium constant \( K = 1.34 \times 10^{-2} \) to solve for the pressures:
\[
K = \frac{(0.45 + p)(1.17 + p)}{(1.51 - 2p)^2}
\]
Solve for \( p \) and substitute back to find the equilibrium pressures for \( \text{H}_2 \) and \( \text{I}_2 \).
---
### Additional Problem
Dr. Dahm wants to make \( \text{N}_2\text{O} \) so he reacts \( \text{N}_2 \) with \( \text{O}_2 \) to give \( \text{N}_2\text{O} \). Unfortunately, this is an equilibrium process that has a K
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