The desorption of a single molecular layer of n-butane from a single crystal of aluminum oxide was found to be first order with a rate constant of 0.128/s at 150 K. Part A What is the half-life of the desorption reaction? t1/ 5.41 s Submit Previous Answers v Correct Part B If the surface is initially completely covered with n-butane at 150 K, how long will it take for 25% of the molecules to desorb? Express your answer using two significant figures. t = 2.2 s Submit Previous Answers v Correct Part C For 50% to desorb? Express your answer using two significant figures. t = 5.4 s Submit Previous Answers v Correct Part D If the surface is initially completely covered, what fraction will remain covered after 14 s ? Express your answer using two significant figures. Π ΑΣ φ. 0.17 Submit Previous Answers Request Answer x Incorrect; Try Again; 3 attempts remaining Part E After 20 s ? Express your answer using two significant figures. ΗΑΣΦ |0.077 %

Q: Be sure to answer all parts. The reaction (a) is second order in A with a rate constant of 35 M¹s¹…

A:

Q: guestion 29 The OH radical reacts with itself in a disproportionation type reaction according to the…

A:

Q: Consider the reaction: NO2 + O3 -> NO3 + O2 Experiment [NO2], M [O3], M Rate, M/s Trial 1…

A: Since you have posted question with multiple sub parts, we will solve only first three sub parts for…

Q: For this item 5, refer to the table below. The initial rates for the reaction: 2CaO + 2H₂O à…

A: Given reaction is :  CaO + H2O ----------> Ca(OH)2  Experimental table is :

Q: The following questions refer to the gas-phase decomposition of ethylene chloride. C2H5CI → products…

A: a.) To calculate rate constant , we would use integrated rate law and given Concentration values at…

Q: The rate constant for a first-order reaction is 3.40 s1. What is the half-life of this…

A:

Q: Question 4 What is the order of reaction with respect to the individual concentration and over all…

A:

Q: • Part A The specific rate constant for the first-order decomposition of N2O5 (g) to NO2(9) and…

A:

Q: For this item 5, refer to the table below. The initial rates for the reaction: 2CaO + 2H₂O2Ca(OH)2…

A: Detail mathematical calculation is shown below

Q: The following mechanism has been proposed for the conversion of ozone to oxygen in the gas phase.…

A:

Q: Part A For a particular first-order reaction, it takes 24 minutes for the concentration of the…

A: Given value is, Time =t =24min

Q: The following reaction is first order in N2O5N2O5: N2O5(g)→NO3(g)+NO2(g) The rate constant for the…

A: Given : The order of reaction is 1 in reactant N2O5. Rate constant of the reaction = 0.053 s-1

Q: The decomposition of ammonia on a platinum surface at 856 °C NH3 →1/2 N2 + 3/2 H2 is zero order in…

A: Given, initial concentration of NH3, [Ao] = 1.18 x 10-2 M            concentration of NH3  at time t…

Q: The reaction, A → products, is known to be second order with respect to the concentration of A and…

A: The reaction taking place is given as, => A ------> Products. a) Given : Order of reaction = 2…

Q: The table shows kinetic data for the dimerzation of a chemical compound: 2A-> B Determine the order…

A:

Q: Question 1 (a) Distinguish between the differential rate law and the integrated rate law. Which of…

A:

Q: Experimental data for a reaction involving LiAlH4 as a reactant is shown below. What is the order of…

A: A question based on kinetics of reactions in solution that is to be accomplished.

Q: Azoisopropane decomposes under the influence of heat as ( CH3)2 CHN(CH3)2 → C6H14 + N2. reaction…

A: The reactions whose order is one are called first order reactions. These reactions show an…

Q: It takes 42.0 min for the concentration of a reactant in a first-order reaction to drop from 0.450 M…

A:

Q: A: Consider the following reaction: N2H5+  +  4 Fe(CN)63-  -->  N2(g)  +  5 H+  +  4 Fe(CN)64- If…

A: Half-life of a reaction is the time at which the initial concentration of the reactant becomes half.…

Q: The gas phase reaction of carbon monoxide with nitrogen dioxide is believed to occur by the…

A: Rate of a reaction is defined as, speed of reaction or time required to decreases or increase the…

Q: The reaction, A → products, is known to be first order with respect to the concentration of A and…

A: For first order reactions: rate constant (k) = (2.303 / time) log ([Ainitial] / [Afinal] where,…

Q: When the rate for the reaction 2 NO + 02 2 NO2 was studied, the rate was found to double when the O,…

A: The given equation for which the rate law to be determined is: 2NO + O2   -----> 2NO2

Q: For the reaction 2A + B → C, the following data was collected. Trial [A] (M) [B] (M) Rate (M/s) 1…

A: Answer:- This question is answered by using the simple concept of chemical kinetics which involves…

Q: The reaction, A → products, is known to be second order with respect to the concentration of A and…

A:

Q: The rate of a hypothetical reaction X-Y+Z. has the following data collected. time (s) (X) (M) 1.2000…

A: For a 2nd order reaction, 1/[A] vs time plot is a straight line and the integrated rate law equation…

Q: The reaction, A → products, is known to be zeroth order with respect to the concentration of A and…

A: The rate constant for the given zero-order reaction is = 0.1400 M·hr-1 The initial concentration of…

Q: Cyclopentadine C5H6 reacts with itself to form dicyclopentadiene C10H12. the progress of the…

A: CONCEPT:

Q: A mechanism for the gas phase reaction of fluorine with chlorine dioxide that is consistent with th…

A: Since you have posted question with multiple subparts and as per guidelines we can solve only three…

Q: Carbon-14 dating is a first order process used to determine the age of artifacts that were made from…

A:

Q: The following data were collected for the reaction of BF3(g) + NH3(g) → F3BNH3(9): Experiment [BF3]…

A:

Q: The half-life for the first-order reaction: SO2CI2 → Cl, is 8.0 minutes. Determine the value of k.…

A: Given that: t1/2 = 8.0 min To find: the value of rate constant k?

Q: Radioactive decay is a process that follows first-order kinetics. The half-life of 36Cl is 3.000e+5…

A:

Q: Part A Dinitrogen pentoxide decomposes in the gas phase to form nitrogen dioxide and oxygen gas. The…

A: Given,  Half-life = 2.81 h

Q: please answer part a and b

A: For first order reaction: t1/2 = 0.693/k t1/2 = 5.41 s

Q: A gas phase reaction between nitrogen dioxide and fluorine is proposed to occur by the following…

A: In order to find the overall reaction, we need to add up the elementary steps. So , for the given…

Q: 23. A certain substance A, initially present at [A]O=0.042 M, decomposes by zero-order kinetics with…

A: For zero order reaction  [A] - [A]• = -k t  where [A] = final concentration  [A]• = initial…

Q: The gas phase decomposition of dinitrogen pentoxide at 335 K N2O5(g)- -2 NO2(g) + % O2(g) is first…

A: Given   The first-order rate constant is 4.70×10-3 s-1. The initial concentration of N2O5 is 0.118…

Q: The rate constant for the gas-phase decomposition of ethane is 2.5 x 105 s-1 at 823 K. The…

A:

Q: please answer part e

A: Given: Rate constant= 0.128/s

Q: In the presence of excess thiocyanate ion, SCN-, the following  reaction is first order in…

A:

Q: Current Attempt in Progress The reaction 2A + 2B M+N has the rate law: Rate k[A]?. At 25°C, k =…

A:

Q: 1-arr In a study of the gas phase decomposition of phosphine at 120 °C PH3(g)1/4 P4(g) + 3/2 H2(g)…

A:

Q: 2 The reaction A+B+C ABC is zero order with respect to one reactant, first order with respect to…

A: Given : We have to predict the order in a(ii) subpart and in c we have to predict the mechanism of…

Q: idk how to solve part b of this problem.

A: The fraction of ethyl chloride that decomposes is calculated in step two.

Q: A study of the gas-phase oxidation of nitrogen monoxide at 25°C gave the following results: 2NO (g)…

A: To determine rate law, first calculate order of NO and H2 by using trial values given. Using that…

Q: Part A A certain first-order reaction has a rate constant of 3.00 x 10-2s¹ at 19 °C. What is the…

A:

Q: Consider the following complex reaction:   2NO2(g) + O3(g) →  N2O5(g) + O2(g) whose initial rate…

A:

Q: How many half-lives are required for the concentration of reactant to decrease to 12.5% of its…

A: By determining the rate constant for a reaction of first-order, we can use the half-lives to further…

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.