Answered: The vapour pressure of a substance at…

The vapour pressure of a substance at 20.0 °C is 58.0 kPa and its enthalpy of vaporization is 32.7 kJ mol−1. Estimate the temperature at which its vapour pressure is 66.0 kPa.

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 13ALQ

See similar textbooks

Related questions

Q: The normal boiling temperature of diethyl ether, (C2H5)2O, is 307.7 K and the standard enthalpy of…

A: Clausius-Clayperon equation relates the vapor pressures and temperature of two different phases at…

Q: Estimate the change in the Gibbs energy and molar Gibbs energy of 100 cm3 of water when the pressure…

Q: Here you are invited to explore the thermodynamic properties of a gas and its ability to condense to…

A: Since we answer only upto three sub-parts, we'll answer first three sub-parts. Please resubmit the…

Q: The standard state of a substance used to be defined as 1 atm at the specified temperature. By how…

A: Given data:

Q: A sample of water vapor at 227 °C at 202.6 kPa is cooled to 197 °C and then expanded to 101.3 kPa.…

A: Gibbs energy is the energy of a chemical reaction that can be applied to conduct non-mechanical…

Q: Calculate the standard molar Gibbs energy of neon gas at 298 K.

A: The standard molar Gibbs energy at any temperature T can be expressed as follows:

Q: A sample of water vapour at 200 °c is compressed isothermally from 350 cm3 to 120 cm3. What is the…

A: Change in molar Gibbs energy in a sample of water vapor at 2000C is compressed isothermally from 350…

Q: What is the boiling point of bromine when the external pressure is 75 kPa?Explain the significance…

A: The triple point of a substance is the temperature and pressure at which the three phases (gas,…

Q: A solution is prepared by dissolving 2.33 g of C60 (buckminsterfullerene)in 100.0 g of toluene…

Q: Question is attached

A: Vapor pressure is the pressure caused by the evaporation of liquids. If the vapour pressure of a…

Q: Estimate the normal boi ling point of benzene given that its vapour pressure is 20 kPa at 35 °C and…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: The vapour pressure of dichloromethane at 24.1 °C is 53.3 kPa and its enthalpy of vaporization is…

Q: What proportions of hexane and heptane should be mixed (i) by mole fraction, (ii) by mass in order…

Q: Derive the relationship between relative lowering of vapour pressure and molar mass of the solute.

A: It is known that the vapour pressure of pure solvent is higher than the vapour pressure of same…

Q: Estimate the change in the Gibbs energy of 2 g of Argon when the pressure is increased from 760…

A: Gibbs free energy depands number of moles, Temperature and change in pressure

Q: Consider a solution consisting of 1.75 mol water and 0.97 mol ethanol. What is the Gibbs energy of…

A: Here we are required to find the Gibbs energy of mixing when water and ethanol are mixed

Q: 5B.11(a) The vapour pressure of pure liquid A at 300K is 76.7kPa and that of pure liquid B is…

Q: Calculate the change in the molar Gibbs energy of a perfect gas when its pressure is increased…

A: Energy is the capacity of the body to do work.

Q: The enthalpy of fusion of anthracene is 28.8 kJ mol−1 and its melting point is 217 °C. Calculate its…

A: Introduction: Solubility: It is defined as the maximum amount of solute that can be dissolved in the…

Q: Ethanol, an alcohol, has the chemical formula C2H5OH. Calculate the vapour pressure of water above a…

Q: Without doing a calculation, decide whether the presence of (a) attractive, (b) repulsive…

A: Introduction: Gibbs free energy: In a thermodynamic system, the maximum amount of work done at…

Q: The standard Gibbs energy of formation of rhombic sulfur is zero and that of monoclinic sulfur is…

A: In this question, we will see which polymorph is most stable at 25°V temperature. You can see…

Q: Explain how osmotic pressure measurements can be used to determine the molar mass of a polymer.

A: The properties that depend on the number of solute particles are called colligative properties. When…

Q: Which has the greatest vapour pressure at 25°C? SiO2 CO2 H2O

A: At constant temperature, vapor pressure depends on the intermolecular forces. Vapor pressure will be…

Q: By how much does the chemical potential of benzene change when the pressure exerted on a sample is…

Q: 6. The variation of vapor pressure of diethyl ether with temperature at its normal boiling…

A: For liquid ====> vapor The rate of vapor pressure change is given by ∆P∆T=…

Q: The change in the molar volume accompanying fusion of solid CO2 is −1.6 cm3 mol−1. Determine the…

A: At constant temperature, the relationship between change in molar Gibbs energy, molar volume, and…

Q: If the standard enthalpy change and standard entropy change for the dissolution of borax at 298 K is…

A: Gibb's free energy is used to define the spontaneity of a reaction. A positive Gibb's free energy…

Q: Calculate the change in the molar Gibbs energy of nitrogen gas when its pressure is increased…

A: We have given that Temperature (T) = 298 K Initial pressure (Pi) = 1 atm Final pressure (Pf) = 50…

Q: C. Consider a chemical reaction. At a temperature T1 enthalpy of reaction is A,H(T,, P) = 400. J and…

A: By studying the temperature, enthalpy, and Gibbs free energy we can conclude that if the reaction is…

Q: In a one-component system, is the condition P = 2 represented on a phase diagram by an area, a line…

A: Here, We need to find the value of P. For this we have the formula; F=C-P+2 Where F is the degree…

Q: The vapour pressures of benzene and methylbenzene at 20 °C are 75 Torr and 21 Torr, respectively.…

A: Given data: Vapour pressure of benzene (POA) = 75 torr Vapour pressure of methyl benzene (POB) = 21…

Q: Formulate the relationship between elevation of boiling point and lowering of vapour pressure and…

Q: Estimate the change in the Gibbs energy of 100 cm3 of water when the pressure acting on it is…

A: Change in Gibb's energy: This is the energy that is used from the initial stage to the final stage…

Q: Consider a pure liquid in equilibrium with its vapor at constant temperature. a) write an…

A: In thermodynamics, chemical potential of a species is energy that can be absorbed or released due to…

Q: 3.12 The standard molar entropies of water ice, liquid, and vapor are 37.99, 69.91, and 188.83 J K-'…

A: When there is study of different phases of a component, it will come under the study of phase…

Q: In the following balanced reaction: 2Al(s) + 6HCl(aq) → 2AlCl3(s) + 3H2(g) 2.32 g of Al react with…

Q: a. Calculate the standard Gibbs free energy change for the process of dissolution of benzene in…

A: Gibbs free energy(∆G) The decrease in the value of Gibbs free energy during a process is equal…

Q: Estimate the enthalpy of reaction h̄R for the dissociation process CO2 ⇌ CO + 1⁄2 O2 at 2200 K,…

A: Given dissociation process is, CO2 ⇌ CO + 12O2 Now, we have to estimate the enthalpy of reaction…

Q: The vapour pressure of pure liquid A at 300 K is 76.7 kPa and that of pure liquid B is 52.0 kPa.…

Q: This question deals with the vapourization of isopropyl alcohol: CH;CH(OH)CH3(1) =CH3CH(OH)CH3(g)…

A: Given reaction is : CH3CH(OH)CH3 (l) <-------------------> CH3CH(OH)CH3 (g) Given change in…

Q: At 25 °C the vapour pressure of ethanol, C2H5OH, is 0.08 atm. What is vapour pressure of a solution…

Q: Calculate the change in the molar Gibbs energy of a perfect gas when its pressure is increased…

A: Given that: Pressure (P1) = 1.0 atm Pressure (P2) = 100.0 atm Temperature (T) = 298 K Change in…

Q: The difference in chemical potential of a particular substance between two regions of a system is…

A: Gibbs energy change : ∆G = -nFE =- qE ∆G = -0.10 x 10-3 x 7.1 x 103 = -0.71 J

Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

The vapour pressure of a substance at 20.0 °C is 58.0 kPa and its enthalpy of vaporization is 32.7 kJ mol⁻¹. Estimate the temperature at which its vapour pressure is 66.0 kPa.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

The standard molar entropies of water ice, liquid, and vapour at 298 K are 37.99, 69.91, and 188.83 J K-1 mol-1, respectively. On a single graph, show how the Gibbs energies of each of these phases vary with temperature; assume that the entropies themselves vary negligibly with temperature.
The vapour pressure of mercury at 20 °c is 160 mPa; what is its vapour pressure at 40 °c given that its enthalpy of vaporization is 59.30 kJ mol-1?
The vapour pressures of benzene and methylbenzene at 20 °C are 75 Torr and 21 Torr, respectively. What is the composition of the vapour in equilibrium with a mixture in which the mole fraction of benzene is 0.75?
The vapour pressure of benzene at 20 °C is 10 kPa and that of methylbenzene is 2.8 kPa at the same temperature. What is the vapour pressure of a mixture of equal masses of each component?
By how much does the chemical potential of carbon dioxide at 310 K and 2.0 bar differ from its standard value at that temperature?
What proportions of hexane and heptane should be mixed (i) by mole fraction, (ii) by mass in order to achieve the greatest entropy of mixing?
a. Calculate the standard Gibbs free energy change for the process of dissolution of benzene in water. b. Find the chemical potential of benzene solution standard state ΔfGo(C6H6,aq).
The Gibbs energy of a pure substance is identical to another thermodynamic quantity: the chemical potential, . How does the chemical potential of liquid water relate to the chemical potential of solid ice at standard pressure (1 bar)? How does this change at high pressure? Does the rate at which the wire moves through the ice depend on the amount of weight placed on the wire? If so, how? Consider whether or not this is an equilibrium process. Does it matter how thick the wire is? If so, why? Does it matter if the wire can conduct heat? If so, why?
The difference in chemical potential of a particular substance between two regions of a system is +7.1 kJ mol−1. By how much does the Gibbs energy change when 0.10 mmol of that substance is transferred from one region to the other?
What is the enthalpy of the dissociation for 2CH4+ O=O = 2CH3OH?
Establish the phase equilibrium for nonreacting systems in terms of the specific Gibbs function of the phases of a pure substance
The vapour pressure of dichloromethane at 24.1 °C is 53.3 kPa and its enthalpy of vaporization is 28.7 kJ mol−1. Estimate the temperature at which its vapour pressure is 70.0 kPa.