Physical Chemistry
2nd Edition
ISBN: 9781285969770
Author: Ball
Publisher: Cengage
expand_more
expand_more
format_list_bulleted
Question
Chapter 6, Problem 6.44E
Interpretation Introduction
Interpretation: The pressure at which a chamber is reduced to distill methanol is to be calculated.
Concept introduction: Vapor pressure is defined as the pressure exerted by a vapor in
The Clausius-Clapeyron equation states the relation between vapor pressure and the absolute temperature.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
When 4 grams of a certain compound is dissolved in 61 grams of water in a calorimeter, the temperature of the calorimeter changes from 25.00ºC to 26.98 ºC. Assuming that the specific heat capacity for the resulting solution is 4.184 J/(g oC), and the heat for this solvation is found as x kJ, what is the value of x?
A constant pressure calorimeter contains 286 g of water at 20.0 °C. A 13.41 g of substance X (molar mass 154 g/mol) at 20.0°C was dissolved in this water. The temperature of the solution increased to 23.5 °C. Assuming the specific heat of the mixture is 4.184 J g‑1°C‑1, and the density of the solution is 1.00 g/cm3, calculate the enthalpy change (in kJ) for the dissolution of 1 mole of X.
Provide the formal definition of enthalpy and explain all symbols used in it. Explain how the change in enthalpy is related to certain thermodynamic property (other than Gibbs energy).
Chapter 6 Solutions
Physical Chemistry
Ch. 6 - Prob. 6.1ECh. 6 - Prob. 6.2ECh. 6 - Prob. 6.3ECh. 6 - Prob. 6.4ECh. 6 - Prob. 6.5ECh. 6 - Prob. 6.6ECh. 6 - Prob. 6.7ECh. 6 - Prob. 6.8ECh. 6 - 6.9. Identify and explain the sign on in equation...Ch. 6 - 6.10. Use Hess’s law to prove that .
Ch. 6 - 6.11. Calculate the amount of heat necessary to...Ch. 6 - Prob. 6.12ECh. 6 - Assume that the vapH of an evaporating liquid...Ch. 6 - 6.14. As a follow-up to the previous exercise,...Ch. 6 - Prob. 6.15ECh. 6 - 6.16. What is for isothermal conversion of liquid...Ch. 6 -
6.17. Estimate the melting point of nickel, Ni,...Ch. 6 -
6.18. Estimate the boiling point of platinum, Pt,...Ch. 6 - Prob. 6.19ECh. 6 - Prob. 6.20ECh. 6 - 6.21. What assumption is used in the integration...Ch. 6 - Prob. 6.22ECh. 6 - Sulfur, in its cyclic molecular form having the...Ch. 6 - Prob. 6.24ECh. 6 - 6.25. Phosphorus exists as several allotropes that...Ch. 6 - Prob. 6.26ECh. 6 - 6.27. What is higher for a substance: its normal...Ch. 6 - 6.28. Elemental gallium is another substance whose...Ch. 6 - Prob. 6.29ECh. 6 - Consider the sulfur solid-state phase transition...Ch. 6 - 6.31. If it takes mega bars of pressure to change...Ch. 6 - Prob. 6.32ECh. 6 - Four alcohols have the formula C4H9OH: 1-butanol,...Ch. 6 - Prob. 6.34ECh. 6 - At 20.0C, the vapor pressure of ethanol is...Ch. 6 - Prob. 6.36ECh. 6 - Prob. 6.37ECh. 6 - Ethanol has a density of 0.789g/cm3 and a vapor...Ch. 6 - Prob. 6.39ECh. 6 - Prob. 6.40ECh. 6 - Prob. 6.41ECh. 6 - 6.42. At what pressure does the boiling point of...Ch. 6 - Prob. 6.43ECh. 6 - Prob. 6.44ECh. 6 - Prob. 6.45ECh. 6 - Prob. 6.46ECh. 6 - Prob. 6.47ECh. 6 - 6.48. Explain how glaciers, huge masses of solid...Ch. 6 - Prob. 6.49ECh. 6 - Prob. 6.50ECh. 6 - Prob. 6.51ECh. 6 - Prob. 6.52ECh. 6 - Prob. 6.53ECh. 6 - Prob. 6.54ECh. 6 - Prob. 6.55ECh. 6 - Prob. 6.56ECh. 6 - Prob. 6.57ECh. 6 - Use the phase diagram of water in Figure 6.6 and...Ch. 6 - Prob. 6.59ECh. 6 - Prob. 6.60ECh. 6 - At the triple point of a substance, the vapor...Ch. 6 - Prob. 6.62ECh. 6 - Prob. 6.63ECh. 6 - Prob. 6.64ECh. 6 - Prob. 6.65ECh. 6 - Prob. 6.66ECh. 6 - The phase diagram for elemental sulfur is shown in...Ch. 6 - Consider the phase diagram of sulfur in the...Ch. 6 - Prob. 6.69ECh. 6 - Rearrange the Clausius-Clapeyron equation,...
Knowledge Booster
Similar questions
- In vacuum distillation, the surrounding pressure inside a chamber is lowered so the solvent boils at a lower temperature. This is useful when isolating compounds that are temperature-sensitive. To what pressure must a chamber be reduced to distill methanol (ΔvapH = 38.56 kJ/mol, TBP = 351 K) at 25.0°C?arrow_forwardX(9) + 4Y(9) = 3Z(g) K, = 3.12 x 10 2 bar 2 at a temperature of 287 °C. Calculate the value of Ke.arrow_forwardConsider the following reaction at 25°C: 3 Ni(s) + N²(g) + 3 H2O(g) → 3 NiO(s) + 2NH:(g) where K = 6.74 x 104 At what partial pressure of ammonia will one be able to get out 11.5 kJ/mol of Gibbs free energy from this reaction when the rest of the mixture contains 57.6 g NiO, 182.3 g Ni, 8.54 atm of nitrogen gas, and 10.07 atm of water vapor? (Enter the partial pressure using two significant figures.)arrow_forward
- Use the Born Haber cycle to calculate the lattice energy of Na2O(s) from the following data. Ionization energy of Na(g ) = 485 kJ mol-1 Electron Affinity of O(g) for two electrons = 553 kJ mol-1 Energy to Sublime Na(s) = 109 kJ mol-1 Bond energy of O2 = 449 kJ mol-1 ArxnH for 2 Na(s) + 1/2 O2(g) -> Na2O(s) = -466 kJ mol-1arrow_forwardThe combustion of propane gas leads to formation of carbon dioxide and water by the following equation: C3H8(g) + 5 O2(g) -> 3 CO2(g) + 4 H2O(l) The standard enthalpy for the reaction delta H° = -2220.0 kJ. If 2.84 x 10^3 of kJ of heat are evolved, what volume of CO2 gas in Liters is produced if this reaction occurs at a pressure of 748 tote and 71°C?arrow_forwardThe salt barium bromide is soluble in water. When 9.82 g BaBr2 is dissolved in 115.00 g water, the temperature of the solution increases from 25.00 °C to 26.68 °C. Based on this observation, calculate the dissolution enthalpy, ΔdissH, of BaBr2.Assume that the specific heat capacity of the solution is 4.184 J g-1 °C-1 and that the energy transfer to the calorimeter is negligible.arrow_forward
- Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.85 g mol-1. When 1.49 g of LiI is dissolved in a coffee cup calorimeter containing 75.0 mL of water the temperature increased from 23.5 °C to 25.7 °C. The specific heat of water is 4.184 J g-1 °C-1, and assume the density of the solution is 1.00 g mL-1. -62 kJ mol-1 -39 kJ mol-1 30 kJ mol-1 -76 kJ mol-1 18 kJ mol-1arrow_forwardThe vapor pressure of ethanol is 58.7 torr at 25 °C. Determine the vapor-pressure lowering, ΔP, of an ethanol solution that contains 0.125 mol sucrose dissolved into 1.545 mol ethanol.arrow_forwardWould the amount of heat absorbed by the dissolution as given below appear greater, lesser, or remain the same if the heat capacity of the calorimeter were taken into account? Explain your answer. When solid ammonium nitrate dissolves in water, the solution becomes cold. This is the basis for an “instant ice pack” (see image). When 3.21 g of solid NH4NO3 dissolves in 50.0 g of water at 24.9 °C in a calorimeter, the temperature decreases to 20.3 °C.Calculate the value of q for this reaction and explain the meaning of its arithmetic sign. State any assumptions that you made.arrow_forward
- Consider a mixture of hexane and heptane as an ideal solution. In what proportion by mass should they be mixed to achieve the greatest ΔmixS?arrow_forwardFor the oxidation of iron to form iron(III) oxide: 4Fe(s) + 3O2(g) ⟷⟷ 2Fe2O3(s) ΔSo = –549.73 J∙K–1 at 298 K. The enthalpy of formation of Fe2O3(s) is –824.2 kJ∙mol–1. What is the standard change in Gibbs free energy for this reaction at 298 K? A)-660 kJ B)-1,485 kJ C)-988 kJ D)-1,812 kJarrow_forwardC6H12O6(aq) + 6O2(g) 6CO2(g) + 6H2O(l)ΔH = –2802.7 kJ mol –1a) Write an expression for the equilibrium constant for this reaction.b) At equilibrium, the concentration of the reactants and products are determined as [CO2] = 0.30 M, [O2] = 0.040 M and [C6H12O6] = 0.065 M. Determine the value of the equilibrium constant (Kc) and predict the whether the products or reactants will be favoured at equilibrium.c) Given that the concentrations of the reactants and products at a particular time are [CO2] = 0.65 M, [O2] = 0.020 M and [C6H12O6] = 0.055 M, determine the reaction quotient (Qc). Compare the Kc and Qc values and predict the favoured direction of the reaction.d) Explain the effect on equilibrium of:i) Increasing temperatureii) Increasing pressureiii) Decreasing the concentration of oxygeniv) Increasing the concentration of carbon dioxidev) Adding a catalystarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning