For the first five questions, consider the following unimolecular dissociation reaction, which occurs in a single...
For the first five questions, consider the following unimolecular dissociation reaction, which occurs in a single elementary step: C4H8 → 2 C2H4. The rate expression for this reaction is Rate = [C4H8]^x * Ae^(−Ea/RT).
1a) What term in this rate expression expresses the relative collision rate (related to the probability that a collision occurs)? A. Ea B. A C. [C4H8] x D. RT E. e −Ea/RT 1.
1b) What is the reaction order with respect to cyclobutane (C4H8), the value of ‘x’ in the previous question? A. 1 B. 2 C. 3 D. -1 E. unable to determine
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For the first five questions, consider the following
unimolecular dissociation reaction, which occurs in a single...
Ation. 7. Consider a collision-induced unimolecular decomposition reaction of the form A B+C. (a)...
ation. 7. Consider a collision-induced unimolecular decomposition reaction of the form A B+C. (a) Write down the three elementary steps in a Lindemann-Hinshelwood mechanism per- taining to such a decomposition reaction. (b) Use the steady-state approximation to obtain an expression for the rate of pro- duction of the products B and C, when the concentration of A is sufficiently high that (c) Express the rate you obtained in (b) in terms of the equilibrium constant pertain- ing to the activation...
44) Which of the following represents the integrated rate law for a first-order reaction? A) I...
44) Which of the following represents the integrated rate law for a first-order reaction? A) I (Alt kt Α) ΙΑ]ο. B) 1 . 1 .kt [A] [A] C) [A]:-[A]o - kt D) k = Ae(Ea/RT) E) Inkla (1) 5) mk2 RW 45) Which of the following represents the integrated rate law for a second-order reaction? A) ITALO B) [A] [A]. = kt C) [A]o - [A] = - kt D) k = Ae(Ea/RT) E E) In ki - Ea (1)...
44) Which of the following represents the integrated rate law for a first-order reaction? A) In...
44) Which of the following represents the integrated rate law for a first-order reaction? A) In Alt E-kt TA) B) 1 . 1 .kt Alt Alo C) [Alt-[Al= kt D) k = Ae(Ea/RT) E) IN (1+ Ina 45) Which of the following represents the integrated rate law for a second-order reaction? A) ISAI. -- - B) TÁL TAL. - Lt C) [A]o - [A] =-kt D) k = Ac(Ea/RT) E 1). Ina 46) Which of the following represents the integrated...
Which of the following expressions describes the rate of reaction for the elementary unimolecular process: O3 → 02 + O?...
Which of the following expressions describes the rate of reaction for the elementary unimolecular process: O3 → 02 + O? O Rate of reaction = k[02] [O] O Rate of reaction = k[03] O Rate of reaction = k0313 O Rate of reaction = k02) [O] For the following elementary reaction: HF + NH3 + F + NH. The rate of consumption of the reactants and rate of formation of products is given by which set of expressions? O 4HF1...
For the first-order reaction X ⟶ products, which of the following graphs is best for determining...
For the first-order reaction X ⟶ products, which of the following graphs is best for determining the activation energy, Ea ? Note: The best choice is the one that yields a straight line graph with the slope directly proportional to Ea . In the options below, T is the kelvin temperature and t is time. (a) k versus 1/T (b) 1 / [X] versus t (c) ln k versus T (d) ln [X] versus t (e) [X] versus t (f)...
Which of the following statements is/are correct? 1) The term e-Ea/RT in the Arrhenius equation is...
Which of the following statements is/are correct? 1) The term e-Ea/RT in the Arrhenius equation is the fraction of reactant molecules having energy less than the activation energy Ea. 2) As a general rule, the probability of correctly oriented collisions between reactant molecules will be low if the molecules are structurally simple, and high if the molecules are complex. 3) The concentration dependence of the rate for an elementary process in a reaction cannot be determined from the stoichiometric coefficients...
Please explain procedure: A+B-2C The following data are obtained for this reaction at a certain temperature:...
Please explain procedure:
A+B-2C The following data are obtained for this reaction at a certain temperature: [A]o (M) 0.150 0.150 0.200 0.300 [B]o (M) 0.250 0.3620 0.400 0.400 initial rate (M/hr) 1.08 x 104 1.56 x 10-4 2.30 x 104 3.44 x 10-4 run # 4 (a) Determine the order of the reaction with respect to A and with respect to B and write the rate expression for the reaction. (answer: first-order with respect to A and first-order with respect...
The reaction 2 NO2(g) → 2 NO (g) + O2(g) has rate constants of 2.70 x...
The reaction 2 NO2(g) → 2 NO (g) + O2(g) has rate constants of 2.70 x 10-2 M-1s-1 at 227 oC and 0.240 M-1s-1 at 277oC. What is the activation energy of this reaction? (Given: Arrhenius equation, k = Ae-Ea/RT ) A) 99.6 kJ/mol B) 22.8 kJ/mol C) 49.8 kJ/mol D) -22.8 kJ/mol E) 65.3 kJ/mol I'm unsure on how to do it since you're not given the frequency factor
1a ) The reaction 2 A → B + C is first order in A. A...
1a ) The reaction 2 A → B + C is first order in A. A time lapse of 180 s was required for the concentration of A to drop from an initial value of 1.5 x 10-2 M to 2.5 x 10-3 M. How much additional time, in s, is required for [A] to decrease further to 1.0 x 10-4 M? A. 500 B. 320 C. 750 D. 360 E. 180 1b) For a reaction that proceeds by the...
only questions number: #3,6,8,16,19,22 Δι CH 122 - Practice Problems for Chapter 12 Do NOT use...
only questions number: #3,6,8,16,19,22
Δι CH 122 - Practice Problems for Chapter 12 Do NOT use this problem set solely as test preparation. This problem set does NOT cover everything that we have discussed in class. You will still need to study class materials in order to do well on the learning assessment. 1. Of the following all are valid units for a reaction rate except A. moll B. M/S C. molhr D.g's E.molle 2. Which one of the following...
ation. 7. Consider a collision-induced unimolecular decomposition reaction of the form A B+C. (a) Write down the three elementary steps in a Lindemann-Hinshelwood mechanism per- taining to such a decomposition reaction. (b) Use the steady-state approximation to obtain an expression for the rate of pro- duction of the products B and C, when the concentration of A is sufficiently high that (c) Express the rate you obtained in (b) in terms of the equilibrium constant pertain- ing to the activation...
44) Which of the following represents the integrated rate law for a first-order reaction? A) I (Alt kt Α) ΙΑ]ο. B) 1 . 1 .kt [A] [A] C) [A]:-[A]o - kt D) k = Ae(Ea/RT) E) Inkla (1) 5) mk2 RW 45) Which of the following represents the integrated rate law for a second-order reaction? A) ITALO B) [A] [A]. = kt C) [A]o - [A] = - kt D) k = Ae(Ea/RT) E E) In ki - Ea (1)...
44) Which of the following represents the integrated rate law for a first-order reaction? A) In Alt E-kt TA) B) 1 . 1 .kt Alt Alo C) [Alt-[Al= kt D) k = Ae(Ea/RT) E) IN (1+ Ina 45) Which of the following represents the integrated rate law for a second-order reaction? A) ISAI. -- - B) TÁL TAL. - Lt C) [A]o - [A] =-kt D) k = Ac(Ea/RT) E 1). Ina 46) Which of the following represents the integrated...
Which of the following expressions describes the rate of reaction for the elementary unimolecular process: O3 → 02 + O? O Rate of reaction = k[02] [O] O Rate of reaction = k[03] O Rate of reaction = k0313 O Rate of reaction = k02) [O] For the following elementary reaction: HF + NH3 + F + NH. The rate of consumption of the reactants and rate of formation of products is given by which set of expressions? O 4HF1...
Which of the following statements is/are correct? 1) The term e-Ea/RT in the Arrhenius equation is the fraction of reactant molecules having energy less than the activation energy Ea. 2) As a general rule, the probability of correctly oriented collisions between reactant molecules will be low if the molecules are structurally simple, and high if the molecules are complex. 3) The concentration dependence of the rate for an elementary process in a reaction cannot be determined from the stoichiometric coefficients...
Please explain procedure:
A+B-2C The following data are obtained for this reaction at a certain temperature: [A]o (M) 0.150 0.150 0.200 0.300 [B]o (M) 0.250 0.3620 0.400 0.400 initial rate (M/hr) 1.08 x 104 1.56 x 10-4 2.30 x 104 3.44 x 10-4 run # 4 (a) Determine the order of the reaction with respect to A and with respect to B and write the rate expression for the reaction. (answer: first-order with respect to A and first-order with respect...
only questions number: #3,6,8,16,19,22
Δι CH 122 - Practice Problems for Chapter 12 Do NOT use this problem set solely as test preparation. This problem set does NOT cover everything that we have discussed in class. You will still need to study class materials in order to do well on the learning assessment. 1. Of the following all are valid units for a reaction rate except A. moll B. M/S C. molhr D.g's E.molle 2. Which one of the following...
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