Ch.14 - Chemical EquilibriumWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: At 700 K, the reaction below has an Kp value of 54. An equilibrium mixture at this temperature was found to contain 1.49 atm of I2 and 4.08 atm of HI. Calculate the equilibrium pressure of H2.H2(g) + I2(g) <=> 2 HI(g).  Enter answer to 2 decimal placesa. 0.05 atm b. 0. 11 atm c. 0.21 atm d. 2.07 atm e. 603.29 atm

Solution: At 700 K, the reaction below has an Kp value of 54. An equilibrium mixture at thistemperature was found to contain 1.49 atm of I2 and 4.08 atm of HI. Calculate the equilibrium pressure of H2.H2(g) + I

Problem

At 700 K, the reaction below has an Kp value of 54. An equilibrium mixture at this
temperature was found to contain 1.49 atm of I2 and 4.08 atm of HI. Calculate the equilibrium pressure of H2.

H2(g) + I2(g) <=> 2 HI(g).  Enter answer to 2 decimal places

a. 0.05 atm
b. 0. 11 atm
c. 0.21 atm
d. 2.07 atm
e. 603.29 atm

Solution

We’re being asked to calculate the equilibrium pressure of H2, given the following reaction:

H2(g) + I2(g) ⇌ 2 HI(g)         Kp = 54


We're given the following equilibrium pressures::

PI2 = 1.49 atm
PHI = 4.08 atm


The Kp expression for the reaction is:

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