In an experiment on the adsorption of oxygen on tungsten it was found that the same volume of oxygen was desorbed in 27 min at 1856 K and 2.0 min at 1978 K. What is the activation energy of desorption? How long would it take for the same amount to desorb at (i) 298 K, (ii) 3000 K?

Q: Use the collision theory of gas-phase reactions to calculate the theoretical value of the…

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Q: The value of steric factor, P for the reaction between NO and Cl2 giving NOCl and Cl is 0.018 at 298…

A: Given = steric factor= 0.018 experimental value of A is 4.0 x 109 L mol-1 s-1

Q: The activation energy for the decomposit ion of benzene diazon ium chloride is 99.1 kJ mol-1. At…

A: The activation energy at 25˚C is 99.1 kJ/mol. Let k1 is the rate constant at 25˚C and k2 at T2. The…

Q: The data given below are for the adsorption of CO on charcoal at 273 K. Confirm that they fit the…

A: As per Langmuir adsorption isotherm, ------(1)

Q: The half-lives for the forward and reverse reactions that are first order in both directions are 24…

A: The half-life of a first-order reaction is expressed as:  Relaxation time is equal to a function…

Q: Consider a polymer formed by a chain process. By how much does the kinetic chain length change if…

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Q: Two points that lie on the line of best fit for a ln k versus 1/T graph are (0.00452, -2.93) and…

A: Given: (0.00452, -2.93) and (0.00700, -5.31) are the points on the line of best fit for a ln k vs…

Q: The rate constant for the H2+ l2→ 2HI reaction at 700 K is 6.42x102 L.mol1. s1 and the activation…

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Q: The reaction rate for the decomposition of N2O5 to form NO2 and O2 was studied as a function of…

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Q: :Under what conditions of enzyme catalyzed reactions has maximum rate, order (followed) and why? i)…

A: 1.

Q: In a study of the rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C…

A: The reaction is a second order reaction  Rate constant k = 1.45 × 102 M-1 min-1

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: Calculate the activation energy for the cementation of copper by iron, from the copper sulfate…

A: The data given is,

Q: Suppose that, in the absence of a catalyst, a certain biochemicalreaction occurs x times per second…

A: The Arrhenius equation is given below.

Q: Q14. A plot of a Langmuir adsorption isotherm (C/q. vs 1/Q.) for an adsorption process, gives a…

A: To calculate the value of Qo , we would first use the linear form equation of Langmuir adsorption…

Q: Why is it necessary to study the diffusion of molecules in biological systems? (а.) To understand…

A: THE CORRECT SOLUTION IS SHOWB BELOW.

Q: Consider a polymer formed by a chain process. By how much does the kinetic chain length change if…

A: In this activity, we have polymer shaped by a chain cycle. we need to sort out what amount does…

Q: Determine the activation energy for a reaction in which the rate constant triples when the reaction…

A: Given:k2 = 3 k1Temperature T1 = 300.7 K.Temperature T2 = 518.6 K.

Q: The pre-exponential factor and activation energy for the hydrolysis of t-butyl chloride are 3.4 x…

A: A(pre exponential factor)=3.4x1016s-1Ea( activation energy)      =101kj/molT(temprature)…

Q: Plot (x/m) versus P for the Freundlich adsorption isotherm Describe how does Freundlich isotherm…

A: All things are provided in handwritten solution.

Q: The adsorption of a gas is described by the Langmuir isotherm with K-0.90 kPa" at 25°C. Calculate…

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Q: The enzyme-catalyzed reaction has the Michaelis-Menten constant KM=0.02 M. The reaction rate is v =…

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Q: Hydrogen purification was conducted at 550 °C using a 3-mm-thick palladium sheet having an area of…

A: Solution :         Diffusion is a process that shows the movement of the particle from an area of…

Q: The following data were obtained for the adsorption of acetone on charcoal from an aqueous solution…

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Q: Normally, DNA has the familiar double helix coiled configuration. The uncoiling of DNA is a 1st…

A: Using the given half-life period, rate constant, k can be determined.

Q: The reaction rate for the decomposition of N,O5 to form NO2 and O2 was studied as a function of…

A: When have to write first the points for the graph as  T , K , 1/T and ln K  Then by using this…

Q: Determine enthalpy of activation, entropy of activation, free energy of activation (25 degC)

A: Given:

Q: Hydrogen iodide is very strongly adsorbed on gold but only slightly adsorbed on platinum. Assume the…

A: The Langmuir isotherm is given by an expression as follows: θ=KP1+KPWhere,θ is the number of active…

Q: Experimentally measured adsorption isotherms often deviate from the Langmuir model. Explain what…

A: Adsorption involves the attraction and retention of molecules (substances) at the surface of liquid…

Q: The reaction rate for the decomposition of N205 to form NO2 and O2 was studied as a function of…

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Q: The preexponential and activation energy for the diffusion of iron in cobalt are 1.1 x 10-5 m?/s and…

A: 1.

Q: A certain reaction with an activation energy of 135 kJ/mol was run at 475 K and again at 495 K. What…

A: The objective of the question is to find the ratio of f at higher tempreture to f at lower…

Q: Discuss the featu res. applications. and limitations of the Michaelis-Menten mechanism of enzyme…

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Q: for each temperature . 4.8 c , 22.0c , 37.4c calculate 1/t and ln (rate ) . slope = -1.96E+03.…

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Q: For Questions 4 and 5, consider the following kinetic data for the decomposition of N204 into NO2.…

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Q: The adsorption of a gas is described by the Langmuir isotherm with α = 0.75 kPa−1 at 25 °C.…

A: Given data, Langmuir isotherm constant α = 0.75 kPa-1 Temperature = 25°C. Calculate the pressure at…

Q: A ne s of concentration and time for species A and B of a chemical reaction. Which s is consistent…

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Q: Determination of Activation Energy -1 -2 -3 -4 -5 -6 -7 0.003 0.003 0.003 0.003 0.003 0.003 0.004…

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Q: In an experiment to measure the quantum yield of a photochemical reaction, the absorbing substance…

A: In order to calculate the quantum yield First of all, total energy delivered to the source is…

Q: Calculate the activation energy and the pre-exponential factor from the following data Temperature…

A: Arrhenius equation relates rate constant with absolute temperature.  Mathematically, k = Ae-Ea/RT…

Q: The rate constant for a reaction is 4.60 xx 10^(-4) at 289.3 K and 3.06 xx 10^(-3) at 356.4 K. What…

A: The question is based on the concept of chemical kinetics. We have to calculate activation energy…

Q: Consider the first-order decomposition of nitramide shown below: NH,NO,(aq) = N,O(g) + H,O(1) The…

A: The given reaction is: NH2NO2(aq)↔N2O(g)+H2O(l) The volume of N2O = 50.0 mL (50.0×10-3 L)…

Q: d. MgBr 1. 2, H,О HO

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Q: A typical diffusion constant for small molecules in aqueous solution at 25 °C is 6 × 10−9 m2 s−1. If…

A: For bimolecular reaction, the rate constant for diffusion-controlled reaction could be given as,…

Q: The viscosity of water at 20 oC is 1.0019 mN s m-2 and at 30 oC it is 0. 7982 mN s m-2 What is the…

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Q: The reaction between O2 and hemoglobin in aqueous solution has an experimentally determined overall…

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Q: What is an adsorption isotherm? Describe Freundlich adsorption isotherm.

A: An adsorption isotherm is a curve relating the equilibrium concentration of a solute on the surface…