Answer the following questions based on the reaction below. At
463 K, the rate constant for this reaction is 1.35×10-4
/s and at 655 K the rate constant is 1.52×101 /s.
cyclopentane → ethene + cyclopropane
1. Determine the activation energy (EA) (in kJ/mol) for
this reaction. Report your answer to three significant figures in
scientific notation.
Tries 0/3 |
2. Determine the pre-exponential factor, A (in /s) for this
reaction. Report your answer to three significant figures in
scientific notation (Please carry all the digits for EA
calculated in part 1).
Tries 0/3 |
3. Determine the rate constant (in /s) for this reaction at 904 K.
Report your answer to three significant figures in scientific
notation (Please carry all the digits for A calculated in part
2).
Answer the following questions based on the reaction below. At 463 K, the rate constant for...
A particular reaction has an activation energy, Ea, of 130 kJ/mol. If the rate constant for the reaction is 0.00684 s −1 at 663 °C, at what temperature(in°C) would the rate constant be 0.376 s −1? *Please report 3 significant figures. Numbers only, no unit. No scientific notation.
QUESTION 18 A particular reaction has an activation energy, Ea, of 108 kJ/mol. If the rate constant for the reaction is 0.00573 s −1 at 498 °C, at what temperature(in°C) would the rate constant be 0.283 s −1? *Please report 3 significant figures. Numbers only, no unit. No scientific notation.
What is the equilibrium constant, Keq, for the reaction listed below at 416 K. Report your answer with three (3) significant figures. You may use scientific notation in your answer, but be sure you use the correct format. PCl5(g) ⇌ PCl3(g) + Cl2(g)
Use the reduction potentials, the unbalanced half reactions and the unbalanced chemical equation below to answer the following questions: Reaction E° (V) In+(aq) + e− → In(s) -0.140 In3+(aq) + e− → In(s) -0.338 In(s) + In3+(aq) → In+(aq) + In(s) 1. Determine Ecell (in V) for this reaction in the direction shown. Report your answer to three decimal places in standard notation (i.e. 1.234 V). Tries 0/5 2. Determine ΔG° (in kJ) for this reaction. Report your answer to...
The following data show the rate constant of a reaction measured at several different temperatures. Temperature (K) Rate Constant (1/s) 300 1.19×10−2 310 3.64×10−2 320 0.104 330 0.278 340 0.703 Part A Part complete Use an Arrhenius plot to determine the activation barrier for the reaction. Express your answer using three significant figures. -- SubmitPrevious AnswersRequest Answer Part B Part complete Use an Arrhenius plot to determine frequency factor for the reaction. Express your answer using two significant figures. --...
Use the reduction potentials and the unbalanced chemical equation below to answer the following questions: Mn2+ (aq) + Ag+ (aq) → Mn (s) + Ag2+ (aq) Half-cell reaction / E° (V) Mn2+(aq) + 2e− ⇌ Mn(s) / -1.185 Ag2+(aq) + e− ⇌ Ag+(aq) / 1.980 a) Determine E°cell (in V). Report your answer to three decimal places in standard notation (i.e. 1.234 V) b) Determine ΔG° (in kJ/mol). Report your answer to three significant figures in scientific notation (i.e. 1.23e4...
Use the vapour pressures (at 25 °C) of the pure substances below to answer the following questions р* (КРa) Substance 3-methyl-1-butanol (C5H120) 0.315 ethyl formate (C3H602) 32.3 1. Determine the partial pressure (in kPa) of ethyl formate (C3H602) in the vapour phase (at 25 °C) over a solution for which the mole fraction of 3-methyl-1-butanol (C5H120) is 0.322. Report your answer to three significant figures in scientific notation. Tries 0/13 Submit Answer 2. A solution of 3-methyl-1-butanol (C5H120) and ethyl...
A reaction has a rate constant of 1.21×10−4 s−1 at 25 ∘C and 0.226 s−1 at 77 ∘C . Part A Determine the activation barrier for the reaction. Express your answer in units of kilojoules per mole and with 3 significant figures. Ea E a = nothing kJ/mol Request Answer Part B What is the value of the rate constant at 18 ∘C ? Express your answer in units of inverse seconds (s−1) and with 3 significant figures. k k...
A certain first-order reaction has a rate constant k = 3.21 X 10-2 s-1 at 20oC. What is the value of the rate constant at 100oC if Ea = 81.5 kJ/mol? (R = 8.314 J/mol K) Write your answer using 3 significant figures.
14.5 The Effect of Temperature on Reaction Rate The following data show the rate constant of a reaction measured at several different temperatures. Temperature (K) Rate Constant (1/s) 310 0.813 320 2.21 330 5.66 340 13.7 350 31.5 Question 10A: Use an Arrhenius plot to determine the activation barrier for the reaction. Express your answer using three significant figures. Answer in kJ/mol Question 10B: Use an Arrhenius plot to determine the frequency factor for the reaction. Express your answer using...