A reaction has a rate constant of 1.26 × 10-4s-1 at 28℃ and 0.226 s-1 at 76℃.
A reaction has a rate constant of 1.26 × 10-4s-1 at 28℃ and 0.226 s-1 at 76℃.
You may want to reference(Pages 606-612) Section 14.6 while completing this problem.
Part B
What is the value of the rate constant at 15℃?
Homework Answers
Step 1: find Ea
Given:
T1 = 28 oC
=(28+273)K
= 301 K
T2 = 76 oC
=(76+273)K
= 349 K
K1 = 1.26*10^-4 s-1
K2 = 0.226 s-1
use:
ln(K2/K1) = (Ea/R)*(1/T1 - 1/T2)
ln(0.226/1.26*10^-4) = ( Ea/8.314)*(1/301 - 1/349)
7.492 = (Ea/8.314)*(4.569*10^-4)
Ea = 136320 J/mol
Step 2:
Given:
T1 = 28 oC
=(28+273)K
= 301 K
T2 = 15 oC
=(15+273)K
= 288 K
K1 = 1.26*10^-4 s-1
Ea = 136.32 KJ/mol
= 136320 J/mol
use:
ln(K2/K1) = (Ea/R)*(1/T1 - 1/T2)
ln(K2/1.26*10^-4) = (136320.0/8.314)*(1/301 - 1/288.0)
ln(K2/1.26*10^-4) = 16396*(-1.5*10^-4)
ln(K2/1.26*10^-4) = -2.459
(K2/1.26*10^-4) = e^(-2.459)
(K2/1.26*10^-4) = 8.553*10^-2
K2 = 1.078*10^-5 s-1
Answer: 1.08*10^-5 s-1
Add Answer to:
A reaction has a rate constant of 1.26 × 10-4s-1 at 28℃ and 0.226 s-1 at 76℃.
The rate constant of a reaction at 33 ∘C was measured to be 5.6×10−2 s−1. You may want to reference (Pages 606 - 612) Se...
The rate constant of a reaction at 33 ∘C
was measured to be 5.6×10−2 s−1. You may want to reference (Pages
606 - 612) Section 14.6 while completing this problem.
Chapter 14 Homework Exercise 14.62 - Enhanced - with Feedback 34 of 48 Review I Constants I Periodic Table The rate constant of a reaction at 33 ° C was measured to be 5.6x10 s-1 Part A You may want to reference (Pages 606 - 612) Section 14.6 while completing...
You may want to reference (Pages 606- 612) Section 14.6 while completing this problem. The following...
You may want to reference (Pages 606- 612) Section 14.6 while completing this problem. The following data show the rate constant of a reaction measured at several different temperatures PartA Temperature (K) Rate constant (1/s) 300 310 320 330 340 1.61x10-2 4.90x10-2 0.139 0.370 0.931 Use an Arrhenius plot to determine the activation barrier (Ea) for the reaction Express your answer using three significant figures. kJ/mol Submit Part B Use an Arrhenius plot to determine the frequency factor (A) for...
The rate constant for a reaction at 12.0°C is 0.010 s-1, and its activation energy is...
The rate constant for a reaction at 12.0°C is 0.010 s-1, and its activation energy is 35.8 kJ. You may want to reference (Page 646) Section 14.5 while completing this problem. Part A Find the rate constant at 45.0°C. 4.8x10-2 3-1 2.1x10-3s-1 O 1.0x10-25-1 O 1.5x10-25-1
The following reaction is first order in N2O5: N2O5(g)→NO3(g)+NO2(g) The rate constant for the reaction at...
The following reaction is
first order in N2O5: N2O5(g)→NO3(g)+NO2(g) The rate constant for
the reaction at a certain temperature is 0.053/s. You may want to
reference (Pages 593 - 598) Section 14.4 while completing this
problem. Part A Calculate the rate of the reaction when [N2O5]=
5.7×10−2 M. Express your answer using two significant figures. rate
= nothing M/s Request Answer Part B What would the rate of the
reaction be at the same concentration as in Part A if...
A reaction has a rate constant of 1.21×10−4 s−1 at 25 ∘C and 0.226 s−1 at...
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...
Constants Periodic Table The rate constant for a reaction at 11.0°C is 0.010 s, and its...
Constants Periodic Table The rate constant for a reaction at 11.0°C is 0.010 s, and its activation energy is 35.8 kJ. You may want to reference (Page 846) Section 14,5 while completing this problem. Part A Find the rate constant at 58.0 °C. 1.0*10-25 O 1.2x10-9 O 15x10-2,! 8.6x10-25 Submit Request Answer
Item 27 The rate constant for a reaction at 14.0°C is 0.010 s- and its activation...
Item 27 The rate constant for a reaction at 14.0°C is 0.010 s- and its activation energy is 35.8 kJ. You may want to reference (Page 646) Section 14.5 while completing this problem. Part A Find the rate constant at 49.0 °C. O 5.1x10-25-1 O 2.0x10-35-1 O 1.0x10-25-1 O 1.6x10-25-1 Submit Request Answer
Consider the following reaction: NH4HS(s)⇌NH3(g)+H2S(g) An equilibrium mixture of this reaction at a certain temperature was...
Consider the following reaction: NH4HS(s)⇌NH3(g)+H2S(g) An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]= 0.284 M and [H2S]= 0.355 M. You may want to reference (Pages 651 - 653) Section 15.6 while completing this problem. Part A What is the value of the equilibrium constant (Kc) at this temperature?
Constants 1 8 The rate constant for a reaction at 24.0 °C is 0.010 and its...
Constants 1 8 The rate constant for a reaction at 24.0 °C is 0.010 and its activation energy is 35.8 kJ. You may want to reference (Page 646) Section 14.5 while completing this problem. Part A Find the rate constant at 61.0 °C. O 1.8x10-27 05.0x10-25-1 O 2.0x10-35-1 10x10-25 Submit Request Answer Provide Feedback
Cyclopropane rearranges to form propene in the gas phase. Constant Part A If the initial cyclopropane...
Cyclopropane rearranges to form propene in the gas phase. Constant Part A If the initial cyclopropane concetration is 0.0410 M, what is the cyclopropane concentration after 225 minutes? Express your answer with the appropriate units. CH HC-CH CH ---CH=CH, HA ? Value Units The reaction is first order in cyclopropane and has a measured rate constant of 3.36 x 10's-1 at 720 K. You may want to reference (Pages 635 - 641) Section 14.4 while completing this problem Submit Request...
The rate constant of a reaction at 33 ∘C
was measured to be 5.6×10−2 s−1. You may want to reference (Pages
606 - 612) Section 14.6 while completing this problem.
Chapter 14 Homework Exercise 14.62 - Enhanced - with Feedback 34 of 48 Review I Constants I Periodic Table The rate constant of a reaction at 33 ° C was measured to be 5.6x10 s-1 Part A You may want to reference (Pages 606 - 612) Section 14.6 while completing...
You may want to reference (Pages 606- 612) Section 14.6 while completing this problem. The following data show the rate constant of a reaction measured at several different temperatures PartA Temperature (K) Rate constant (1/s) 300 310 320 330 340 1.61x10-2 4.90x10-2 0.139 0.370 0.931 Use an Arrhenius plot to determine the activation barrier (Ea) for the reaction Express your answer using three significant figures. kJ/mol Submit Part B Use an Arrhenius plot to determine the frequency factor (A) for...
The rate constant for a reaction at 12.0°C is 0.010 s-1, and its activation energy is 35.8 kJ. You may want to reference (Page 646) Section 14.5 while completing this problem. Part A Find the rate constant at 45.0°C. 4.8x10-2 3-1 2.1x10-3s-1 O 1.0x10-25-1 O 1.5x10-25-1
The following reaction is
first order in N2O5: N2O5(g)→NO3(g)+NO2(g) The rate constant for
the reaction at a certain temperature is 0.053/s. You may want to
reference (Pages 593 - 598) Section 14.4 while completing this
problem. Part A Calculate the rate of the reaction when [N2O5]=
5.7×10−2 M. Express your answer using two significant figures. rate
= nothing M/s Request Answer Part B What would the rate of the
reaction be at the same concentration as in Part A if...
Constants Periodic Table The rate constant for a reaction at 11.0°C is 0.010 s, and its activation energy is 35.8 kJ. You may want to reference (Page 846) Section 14,5 while completing this problem. Part A Find the rate constant at 58.0 °C. 1.0*10-25 O 1.2x10-9 O 15x10-2,! 8.6x10-25 Submit Request Answer
Item 27 The rate constant for a reaction at 14.0°C is 0.010 s- and its activation energy is 35.8 kJ. You may want to reference (Page 646) Section 14.5 while completing this problem. Part A Find the rate constant at 49.0 °C. O 5.1x10-25-1 O 2.0x10-35-1 O 1.0x10-25-1 O 1.6x10-25-1 Submit Request Answer
Constants 1 8 The rate constant for a reaction at 24.0 °C is 0.010 and its activation energy is 35.8 kJ. You may want to reference (Page 646) Section 14.5 while completing this problem. Part A Find the rate constant at 61.0 °C. O 1.8x10-27 05.0x10-25-1 O 2.0x10-35-1 10x10-25 Submit Request Answer Provide Feedback
Cyclopropane rearranges to form propene in the gas phase. Constant Part A If the initial cyclopropane concetration is 0.0410 M, what is the cyclopropane concentration after 225 minutes? Express your answer with the appropriate units. CH HC-CH CH ---CH=CH, HA ? Value Units The reaction is first order in cyclopropane and has a measured rate constant of 3.36 x 10's-1 at 720 K. You may want to reference (Pages 635 - 641) Section 14.4 while completing this problem Submit Request...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago