PHYSICAL CHEMISTRY-STUDENT SOLN.MAN.
2nd Edition
ISBN: 9781285074788
Author: Ball
Publisher: CENGAGE L
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Chapter 17, Problem 17.26E
Using the fact that
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Molecular bromine is 24 per cent dissociated at 1600 K and 1.00 bar in the equilibrium Br2(g) = 2 Br(g). Calculate (a) K at 25°C, (b) ∆r G0 , (c) K at 2000°C given that ∆r H o = +112 kJ mol−1 over the temperature range.
The standard Gibbs energy of formation of gaseous ozone at 25.0 ℃ ΔfGo, is162.3 kJ. mol-1, for standard state of 1 bar. The reaction is: 3O2 (g) ⇌ 2O3(g).
Calculate the value of Kx at 2 bar.
15
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18
19
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22
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24
= 25
26
Hydrogen chloride and oxygen react to form water and chlorine, líke this:
4HCI(g)+0,(g) → 2H,0(g)+2C,(g)
Suppose a mixture of HCI, O2, H,0 and Cl, has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table
below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left.
perturbation
change in composition
shift in equilibrium
O to the right
The pressure of O, will
O to the left
Some HCI is removed.
The pressure of H2O will
O (none)
O to the right
The pressure of HCI will
O to the left
Some H,0 is added.
The pressure of O, will
O (none)
go up.
go down.
not change.
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Chapter 17 Solutions
PHYSICAL CHEMISTRY-STUDENT SOLN.MAN.
Ch. 17 - Prob. 17.1ECh. 17 - Prob. 17.2ECh. 17 - Prob. 17.3ECh. 17 - Prob. 17.4ECh. 17 - Prob. 17.5ECh. 17 - Prob. 17.6ECh. 17 - Prob. 17.7ECh. 17 - Prob. 17.8ECh. 17 - Prob. 17.9ECh. 17 - Prob. 17.10E
Ch. 17 - Prob. 17.11ECh. 17 - If the ni values are all the same, a shorthand way...Ch. 17 - Prob. 17.13ECh. 17 - Prob. 17.14ECh. 17 - Prob. 17.15ECh. 17 - Prob. 17.16ECh. 17 - Prob. 17.17ECh. 17 - Prob. 17.18ECh. 17 - Prob. 17.19ECh. 17 - Prob. 17.20ECh. 17 - Prob. 17.21ECh. 17 - Prob. 17.22ECh. 17 - Explain why q is a constant for a given system at...Ch. 17 - What is the ratio of ground-state nickel atoms in...Ch. 17 - Ti3+ has the following electronic energy levels:...Ch. 17 - Using the fact that =1/kT, show that equations...Ch. 17 - A one-dimensional particle-in-a-box has a length...Ch. 17 - Prob. 17.28ECh. 17 - Prob. 17.29ECh. 17 - Prob. 17.30ECh. 17 - Prob. 17.31ECh. 17 - What is the value of q at absolute zero? Is it the...Ch. 17 - Prob. 17.33ECh. 17 - Prob. 17.34ECh. 17 - Prob. 17.35ECh. 17 - Prob. 17.36ECh. 17 - Prob. 17.37ECh. 17 - Prob. 17.38ECh. 17 - Prob. 17.39ECh. 17 - Prob. 17.40ECh. 17 - Prob. 17.41ECh. 17 - Prob. 17.42ECh. 17 - What change is there in the Sackur-Tetrode...Ch. 17 - Prob. 17.44ECh. 17 - Prob. 17.45ECh. 17 - Prob. 17.46ECh. 17 - Calculate the thermal de Broglie wavelength of He...Ch. 17 - Prob. 17.48ECh. 17 - Prob. 17.49ECh. 17 - Prob. 17.50ECh. 17 - Prob. 17.51ECh. 17 - Prob. 17.52ECh. 17 - Prob. 17.53ECh. 17 - Use equation 17.56 to determine the change in...Ch. 17 - For an electron that has a velocity of 0.01c where...Ch. 17 - Use the Sackur-Tetrode equation to derive the...Ch. 17 - Prob. 17.57ECh. 17 - Prob. 17.58E
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- For the system 2SO3(g)2SO2(g)+O2(g) K=1.32 at 627. What is the equilibrium constant at 555C?arrow_forwardFor the equilibrium, N2O4(g) ⇋ 2 NO2(g), the degree of dissociation, α, at 298 K is 0.201 at 1.00 bar total pressure. Calculate K.arrow_forwardThe decomposition of a generic diatomic element in its standard state is represented by the equation....arrow_forward
- It is determined that a particular chemical reaction has AH° = 42.2 kJ mol 1 and Aso, | = 124.5 JK-1 mol 1. rxn rxn Determine the equilibrium constant for the reaction, K, at 298 K.arrow_forwardMolecular bromine is 24% dissociated at 1600 K and 1.00 bar in the equilibrium Br2 (g) ↔ 2 Br (g). Calculate K at the following temperatures given that ΔHr° = 112 kJ/mol over the temperature range: 1600 K 2000 Karrow_forward-What are standard transformed states of Gibbs Free Energy and the Equilibrium Constant and why is this significant in biochemistry? -What is the definition of the Equilibrium Constant?arrow_forward
- The standard Gibbs energy of formation of gaseous ozone at 25.0 ℃ ΔfGo, is162.3 kJ. mol-1, for standard state of 1 bar. The reaction is: 3O2 (g) ⇌ 2O3(g). Calculate the value of the equilibrium constant, K, for the above reaction.arrow_forwardConsider the reaction A -> 2 B. Suppose 2.50 mol of A is initially introduced into a 1.00 L flask. Equilibrium is established at 25 °C with a concentration of B of 0.11 mol L-1. What is the standard change in Gibbs free energy for this reaction?arrow_forwardInitially, 0.075 mol CH3OH gas and 0.025 mol NOCl gas were mixed at 25 degrees celsius. At equilibrium, it was found that 0.005 mol CH3NO2 was present. Calculate the standard molar Gibbs free energy.arrow_forward
- The decomposition of a generic diatomic element in its standard state is represented by the equation X₂(g) → X(g) Assume that the standard molar Gibbs energy of formation of X(g) is 4.43 kJ · mol-¹ at 2000. K and -48.56 kJ. mol-¹ at 3000. K. Determine the value of the thermodynamic equilibrium constant, K, at each temperature. At 2000. K, AGF = 4.43 kJ - mol-¹. What is K at that temperature? K at 2000. K = At 3000. K, AG = -48.56 kJ mol-¹. What is K at that temperature? K at 3000. K =arrow_forwardPlease write full calculations and explain math At 700 K, the reaction2SO2(g) + O2(g) ⇌ 2SO3(g) has the equilibrium constant K = 4.3 × 106, and the following initial partial pressures present: pSO2 = 0.010 bar; pO2 = 0.010 bar; pSO3 = 10. bar. Calculate Q and predict in what direction the reaction will proceed to reach equilibrium.arrow_forwardWhat is the standard enthalpy of a reaction for which the equilibrium constant is (i) doubled, (ii) halved when the temperature is increased by 15 K at 310 K?arrow_forward
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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY