The following are the volumes of ammonia, reduced to STP, adsorbed by a g charcoal at 273 K:Pressure (kPa)Gas adsorbed (cm3)6.87413.511126.714753.117779.4189Make a plot to see if the data are consistent with the Langmuir isotherm. If so, evaluate the constant K and Vo, the volume adsorbed when the surface is saturated.Answer is [13.6 kPa-1; 222 cm3]

Answered: Image /qna-images/answer/88a3cbc1-0f66-4bb2-b40a-ad7dac46bcdc.jpg

Answered: Make a plot to see if the data are…

Make a plot to see if the data are consistent with the Langmuir isotherm. If so, evaluate the constant K and Vo, the volume adsorbed when the surface is saturated. Answer is [13.6 kPa-1; 22

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter22: Surfaces

Section: Chapter Questions

Problem 22.42E

See similar textbooks

Related questions

Q: 1. The following are data for the adsorption of Co on wood charcoal at 0°C. The pressure P is in the…

Q: (a) Discuss the assumption of Langmuir adsorption isotherm. Obtain an expression for the amount of…

A: Langmuir proposed Adsorption isotherm which explains the variation of Adsorption with respect to…

Q: A) Continuing from a pre-deposition of dopants to a substrate with a bulk concentration of 1016/cm³,…

Q: Arrange the gases CO, N2 and CH4 in increasing order of adsorption on the surface of charcoal in a…

A: Adsorption is a surface phenomenon in which a solid substance holds other substance that can be…

Q: The diffusion coefficient of CCl4 in heptane at 25 °C is 3.17 × 10−9 m2 s−1. Estimate the time…

A: Diffusion coefficient tells about relation about molar flux and gradient in concentration of the…

Q: A solid in contact with a gas at 8.86 kPa and 25 °C adsorbs 4.67 mg of the gas and obeys the…

A: Given information: Enthalpy change (ΔHads) = +12.2 kJ/mol Initial temperature (T1) = 25.0 °C Final…

Q: If a gas A is adsorbed on a solid surface .12 and obeys Langmuir Isotherm model. The plotting of V/P…

A: The Langmuir equation and modification is provided in the picture, using which we can find the V0…

Q: Estimate the diffusion coefficients and the effective hydrodynamic radii of the alkali metal cations…

A: The diffusion coefficient is calculated by following formula. Given temperature in degree Celsius…

Q: 5g of a catalyst adsorbs 400cm3 of N2 at stp to form a monolayer. What is the. Surface area per Gram…

A: Convert 400cm3 into L. This can be done as follows-

Q: The following are data for the adsorption of CO on wood charcoal at 0°C. The following pressure P is…

Q: 12 Brunauer -Emmett -Teller (BET) aims to explain the physical adsorption of gas molecules on a…

A: Solution is next step

Q: Bottle Concentration of No Oxalic acid, N N initial N final 1 1 0.23 2 1 0.22 3 1 0.17 4 1 0.13 5 1…

A: In the given problem, a (g/mL)=Nfinal-Ninitial

Q: In the adsorption of N2 at 90.1 K on a certain solid, the following volumes of gas, reduced to…

A: a) The BET equation is given by, where p and p0 are the equilibrium and the saturation pressure of…

Q: A solid in contact with a gas at 12 kPa and 25°C adsorbs 2.5 mg of the gas and obeys the Langmuir…

A: Given:A Solid in a contact with gas at P1 = 12 kPa and T1 = 25°C adsorbs 2.5mg of the gas and obeys…

Q: The average time for which an oxygen atom remains adsorbed to a tungsten surface is 0.36 s at 2548 K…

A: Arrhenius equation specifies the relationship between the temperature and reaction rates or time.…

Q: The enthalpy of adsorption of ammonia on a nickel surface is found to be −155 kJ mol−1. Estimate the…

A: Given: Q (Energy of the molecule- surface interaction or heat of adsorption.)=−155 kJ mol−1…

Q: 1) The data below show the pressures of CO needed for the volume of adsorption (corrected to 1.00…

A: To calculate the value of adsorption enthalpy , we would use the given formula and plug data values…

Q: Iron- and aluminum-oxide surfaces will generally adsorb cations more strongly at lower pH than at…

Q: Explain the relationship given by Freundlich in adsorption isotherm.

A: An empirical relationship between the amount of gas adsorbed into a solid surface and the pressure…

Q: In HPLC columns .a O plate height increases as the particle size of the packing material decreases…

A: Q.1: In high performance liquid chromatography (HPLC) columns, decreasing the particle size of the…

Q: The following data refers to the adsorption of diatomic nitrogen on a sample of carbon black at 77…

Q: 4. The following data refers to the adsorption of dinitrogen (N2) on a sample of carbon black at…

A: To determine the surface area in square meters.

Q: 1. The following are data for the adsorption of CO on wood charcoal at 0°C. The pressure P is in mm…

A: The relation between the gas absorbed on the surface and gas pressure is known as Freundlich…

Q: Coprecipitation due to surface adsorption can be minimized by the following except: reducing the…

A: Coprecipitation due to surface adsorption can be minimized by the following except, (1)reducing the…

Q: The location of particle and its direction on.1 solid surface depend on I. The dual interaction…

A: The location of particle and its direction on solid surface depends upon the following factors:

Q: Rationalise what adding Na2O (a network modifier) to B2O3 does to the structure of the glass. Begin…

A: Using a combination of experiments and molecular dynamics simulations using newly constructed…

Q: 5) In the adsorption of N2 at 90.1 K on a certain solid, the following volumes of gas, reduced to…

A: The BET equation is given by, where p and p0 are the equilibrium and the saturation pressure of…

Q: The data below relate to the adsorption of N2 on rutile (TiO,) at 75K, reduced to standard…

A: For N2 at 75K, the vapour pressure P∘=570 torr, Where, P(torr) values and their volume are given, We…

Q: Calculate the initial sticking probability of oxygen, if O2 gas at 10-6 mbar is dissociatively…

A: The sticking probability (s) = paI where, Pa = adsorption rate I = Flux

Q: The mass of a compound A that is adsorbed onto a surface is related to its concentration at…

Q: The following data refers to the adsorption of diatomic nitrogen on a sample of carb at 77 K.…

Q: A solid in contact with a gas at 12 kPa and 25 °C adsorbs 2.5 mg of the gas and obeys the Langmuir…

A: Given: Enthalpy change=10.2J Initial Temperature = 25°C=298K Final Temperature = 40°C=313K Initial…

Q: ) Does this data fit well to a Langmuir isotherm? If yes, determine vm and b.

A: Langmuir adsorption isotherm is used to explain the adsorption by any adsorbate assuming the…

Q: Why is the adsorption of a gas onto a surface almost always an exothermic process?

A: The process of the attachment of particles over the surface of another material is called…

Q: Why is adsorption phenomenon always exothermic?

A: Exothermic process are those where heat is released by the system.

Q: Template Assisted Crystallization (TAC) is a a commercial softening alternative. Which of the…

A: Template assisted crystallization is a commercial softening alternative which involves use of…

Q: Adsorption is a real problem in gravimetry, especially when the particle size is large.

A: Gravimetry is considered as a quantitative analytical method which is based on the measurement of a…

Q: In the fluorination reaction of butadiene, the butadiene is adsorbed onto a catalyst C. To test the…

A: We are given pressure(kPa) and volume(cm3) data for the adsorption of butadiene on the surface of…

Q: For N2 adsorbed on activated carbon at –77 °C, the following values of adsorbed gas (per gram of…

A: The variation of adsorption with pressure at a given constant pressure at a given temperature is…

Q: 4. Give the mathematical equation relating the pressure (P) and the extent of adsorption (x/m) of…

Q: 7. Using a silica gel and nitrogen as adsopbent, the following adsorption isotherm data were…

Q: A monolayer of CO molecules is adsorbed on the surface of 1.00 g of an Fe/AI2O3 catalyst at 77 K,…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Concept explainers

Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.

Question

The following are the volumes of ammonia, reduced to STP, adsorbed by a g charcoal at 273 K:

Pressure (kPa)	Gas adsorbed (cm³)
6.8	74
13.5	111
26.7	147
53.1	177
79.4	189

Make a plot to see if the data are consistent with the Langmuir isotherm. If so, evaluate the constant K and Vo, the volume adsorbed when the surface is saturated.

Answer is [13.6 kPa^-1; 222 cm³]

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

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

In this table the Kr volume adsorbed on an active carbon surface are given, as a function of the pressures, at 193.5 K. a) Does this data fit well to a Langmuir isotherm? If yes, determine vm and b.
A monolayer of N2 molecules is adsorbed on the surface of 1.00 g of an Fe/Al2O3 catalyst at 77 K, the boiling point of liquid nitrogen. Upon warming, the nitrogen occupies 3.86 cm3 at 0 °C and 760 Torr. What is the surface area of the catalyst? Use the value of the collision cross-section for N2 (from the Resource section) as an estimate for the area of a molecule.
The enthalpy of adsorption of CO on a surface is found to be −120 kJ mol−1. Estimate the mean lifetime of a CO molecule on the surface at 400 K; take τ0 = 1.0 × 10−14 s.
The enthalpy of adsorption of ammonia on a nickel surface is found to be −155 kJ mol−1. Estimate the mean lifetime of an NH3 molecule on the surface at 500 K; assume τ0 = 1.0 × 10−14 s.
At 0°C and 1 bar, a monolayer of CO adsorbed on 1 g of Fe/Al2O3 catalyst occupies a volume of 4.25 cm3. What is the area of the catalyst? The area per adsorbed particle is 0.165 nm2. Give your answer in m2.
A monolayer of CO molecules is adsorbed on the surface of 1.00 g of an Fe/AI2O3 catalyst at 77 K, the boiling point of liquid nitrogen. Upon warming, the carbon monoxide occupies 4.25 cm3 at O oC and 1.00 bar. What is the surface area of the catalyst?
The adsorption equilibrium isotherm for aqueous phenol solution and activated carbon can be determined from the following data: c kg phenol/m3 solution q kg phenol/kg carbon 0.3220 0.150 0.1170 0.122 0.0390 0.094 0.0061 0.059 0.0011 0.045 Determine the appropriate isotherm for this experimental run
Calculate the isosteric enthalpy of adsorption from the following results which were obtained for the adsorption of 0.145 cm3, at STP, of nitrogen on charcoal: Temperature (K) Pressure (kPa) 195 156 244 380 273 567 Answer is [-7.53 kj/mol]
An experimental method of determining solubility parameters of polymers involves taking lightly crosslinked (network) samples of the polymers in question and immersing them in different solvents whose solubility parameters are known. Explain the rationale behind this method.
If the adsorption of a gas onto a surface is found, somewhat unusually, to be endothermic, what can be said about the entropy change on adsorption?
Nitrogen gas adsorbed on a surface to the extent of 1.242 cm3 g−1 at 350 kPa and 180 K, but at 240 K the same amount of adsorption was achieved only when the pressure was increased to 1.02 MPa. What is the enthalpy of adsorption of nitrogen on the surface?
Using the relation between temperature and diffusion coefficient, if the temperature increases twice calculate the change in the quanity of activation energy and express it graphically.