Hydrogen purification was conducted at 550 °C using a 3-mm-thick palladium sheet having an area of 0.25 m?. (a) Calculate the diffusion coefficient of hydrogen in palladium at this temperature. The preexponent and the activation energy are 12,000 J/mol and 6.5 x 108 m?/s, respectively. R = 8.3145 J/mol-K. (b) When the steady-state condition was attained, hydrogen concentrations at the high- and low-pressures side of the plate were 1.7 and 0.5 kg/m³. Compute the amount of hydrogen that passes through the sheet per hour (in kg/h).

Hydrogen purification was conducted at 550 °C using a 3-mm-thick palladium sheet having an area of 0.25 m?. (a) Calculate the diffusion coefficient of hydrogen in palladium at this temperature. The preexponent and the activation energy are 12,000 J/mol and 6.5 x 108 m?/s, respectively. R = 8.3145 J/mol-K. (b) When the steady-state condition was attained, hydrogen concentrations at the high- and low-pressures side of the plate were 1.7 and 0.5 kg/m³. Compute the amount of hydrogen that passes through the sheet per hour (in kg/h).

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: The first-order decomposition of a colored chemical species, X, into colorless products is monitored…

A: Lambert beer's law Absorbance=Ecl

Q: In a study of the gas phase decomposition of dinitrogen pentoxide at 335 K N,O5(g)2 NO,(g) + ½ 02(g)…

A: Given : Slope of the curve = -6.30 x 10-3 sec-1 y-intercept = -1.74

Q: Technetium (Tc) is a by-product of the spontaneous fission of Uranium-238 and as such is of…

Q: (b) Consider the following elementary bimolecular gas-phase reactions below at 850K: H2 (g) 12 (g) →…

A: Results: (i) Reduced Mass, μ: μ=2.000 u (ii) Second-Order Rate Constant, k: First, the…

Q: (Self-test 17A.1) Predict how the total pressure varies during the gas-phase reaction 2NOBr(g) →…

A: We have to find the variation of total pressure of given gas phase reaction in terms of intial total…

Q: The frequency factor for a second-order gas-phase decomposition of a species at low pressures is 2.3…

A: According to Arrhenius equation, the relation between rate constant k, activation energy Ea, and…

Q: The first-order decomposition of a colored chemical species, X, into colorless products is monitored…

A: Given molar absorptivity constant, E = 5.00 × 103 cm–1 M–1 path length, b = 1.00 cm Rate constant,…

Q: The active form of the enzyme alcohol dehydrogenase exists as a homotetramer (MW = 150 kDa), and has…

Q: The equilibrium NH3(aq) + H₂O(l) →NH4+ (aq) + OH(aq) at 25 °C is subjected to a temperature jump…

A: According to the question we have an equilibrium reaction for the hydrolysis of ammonia which is…

Q: 2. The investigation of the reaction represented by the equation: X (g) + Y (g) → Z (g), allowed to…

A: Given:Temperature = Rate constant = The Arrhenius equation describes the temperature dependence of…

Q: he fluorescence of a fluorophore is quenched in the presence of iodide ions. (i) Would the…

A: the quantum yield of a photochemical reaction is the ratio of no.of moles of light absorbing…

Q: 1 The diffusion of atoms in crystals is dependent on the material involved, the activation energy,…

A: The objective of the question is to calculate the diffusion coefficient.

Q: Consult literature sources and list the observed ranges of timescales during which the fol lowing…

A: The observed ranges of timescales during which the following processes occur are listed belo and the…

Q: The equilibrium NH3(aq) + H2O(1)→NH4+ (aq) + OH(aq) at 25 °C is subjected to a temperature jump…

A: According to the question we have an equilibrium reaction for the hydrolysis of ammonia which is…

Q: The rate of an enzyme-catalyzed reaction is 2.26×10° times faster than the rate of the uncatalyzed…

Q: The equilibrium NH3(aq) + H2O(l) ↔NH4+(aq) + OH−(aq) at 25 °C is subjected to a temperature jump…

A: Given: NH3 (aq) + H2O (l) ↔NH4+(aq) + OH-(aq) Temperature (T) =25 °CRelaxation time (t)=7.61…

Q: What is the value of AS for this reaction in the temperature range between 110°Cand 280°C?

Q: 11) The photo-decomposition reaction mechanism of HI can be expressed as follows, HI+hv→H+I,…

Q: The effective rate constant for a gaseous reaction which has a Lindemann mechanism is 2.50 x 10-4…

A: Given: Effective rate constant = 2.50*10-4 s-1 at 1.30 kPa Effective rate constant = 2.10*10-5 s-1…

Q: 4. The study of conditions that optimize the association of proteins in solution guides the design…

A: Given data:

Q: In a study of the decomposition of ammonia on a platinum surface at 856 °C NH31/2 N2 + 3/2 H2 the…

Q: In a study of the formation of HI from its elements,H₂(g)+I₂(g)→ 2HI(g) equal amounts of H₂ and I₂…

A: a.

Q: Chlorine atoms react with methane, forming HCl and CH3. The rate constant for the reaction is 6.00 ×…

Q: In a study of the decomposition of ammonia on a platinum surface at 856 °C NH31/2 N2 + 3/2 H2 the…

A: Answer

Q: Cl, 2 2C1- (6-12a) + CO CIĊO (6-12b) + Cle CIĄCO + Cl- (6-12c)

Q: The rate of the elementary reaction O2 + H2H + HO2 has been studied as a function of temperature…

A: It is based on the theory of Arrhenius Theory of gasesFor the given elementary reaction we need to…

Question

Hydrogen purification was conducted at 550 °C using a 3-mm-thick
palladium sheet having an area of 0.25 m?.
(a) Calculate the diffusion coefficient of hydrogen in palladium at this
temperature. The preexponent and the activation energy are 12,000 J/mol
and 6.5 x 108 m?/s, respectively. R = 8.3145 J/mol-K.
(b) When the steady-state condition was attained, hydrogen concentrations
at the high- and low-pressures side of the plate were 1.7 and 0.5 kg/m³.
Compute the amount of hydrogen that passes through the sheet per hour (in
kg/h).

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 1rrttgfgggffg

Step 2

Step 3

Step 4

Step 5

Step 6

Trending now

This is a popular solution!

Step by step

Solved in 6 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

(3) 13. For the following questions, use the following diagrams. Uncatalyzed Reaction Catalyzed Reaction 400 400 300 300 reactants reactants 200 200 100 100 products products Reaction coordinate Reaction coordinate (1) (a) What is the value of the forward activation energy of the uncatalyzed reaction? (1) (b) What is the value of the reverse activation energy of the catalyzed reaction? (1) (c) What is the overall enthalpy (AH) of the forward reaction? Potential energy (kJ) Potential energy (kJ)
The Arrhenius parameters for the gas-phase decomposit ion of cyclobutane, C4H8(g)→ 2 C2H4(g). are log(A/s-1) = 15.6 and Ea = 261 kJ mol- 1. What is the ha lf- life of cyclobutane at (a) 20 °C, (b) 500 °C?
Consider the chemical reaction described by 2A(aq) ⇌ D(aq)with rate constants k1 and k-1. If the reaction is subject to a temperature jump, derive the equation for d[D]/dt in terms of a relaxation constant t.
A gas phase reaction has a rate coefficient of 1.3·104 L mol–1s–1 at 300 K and its activation energy is 8.3 kJ mol–1. Indicate the order of the reaction.
To study the photochemical decomposition of aqueous bromine exposed to bright sunlight, we dissolved a small amount of liquid bromine in water contained in a glass jar and placed under direct sunlight. The following data were obtained at 25\deg C:\table [[Tiempo (min ), 10, 20, 30, 40, 50, 60], [Ppm, 2.45, 1.74, 1.23, 0.88, 0.62, 0.44]] Determine the reaction rate order and the specific reaction rate constant: a) Differential method ( The method for obtaining the derivatives is left to your decision) Tiempo (min) Ppm Br₂ 10 2.45 20 1.74 Ć 30 1.23 40 0.88 50 0.62 60 0.44
5. Given an example from literature about the dissociative adsorption of a diatomic molecule of your choice, and explain the reason. 1
Indicate the FALSE statement(s) regarding the reaction aA + bB (i) The reaction rate can be expressed, equivalently, as: vo= (1/a)dA/dt or vo = AG/ At. (ii) The reaction rate can be expressed as vo = k[A][B]n, where m and n can be different from a and b. (iii) Average rates approach instantaneous rates when At approaches zero. iii gG+ hH. i i, ii ii
Distinguish between a first-order phase transition, a second-order phase transition, and a λ-transition at both molecular and macroscopic levels.