The rate of a certain reaction was studied at various temperatures. The table shows temperature (T) and rate constant (k) data collected during the experiments. Plot the data, and then answer the following questions.
What is value of the activation energy, Ea, for this reaction?
What is the value of the pre-exponential factor (sometimes called the frequency factor), A, for this reaction?
For this we have to first plot 1/T versus ln k then we have slope = -Ea/R
See plot
slope = -13299
Ea/R = 13299
Ea = 13299 x8.314 = 110.6 kJ/mol
The intercept gives the value of = ln(A)
26.046 = ln(A)
A = e26.046
A = 2.04 x 1011s-1
The rate of a certain reaction was studied at various temperatures. The table shows temperature (T)...
T'(K) k(s-1 400 0.000659 The rate of a certain reaction was studied at various temperatures. The table shows temperature (T) and rate constant (k) data collected during the experiments. Plot the data to answer the questions. 420 0.00327 440 0.0181 What is the value of the activation energy, Eq, for this reaction? 460 0.0589 480 0.213 500 0.615 520 1.66 1 Ea = kJ · mol-1 540 3.99 560 9.64 OG TOOLS What is x102 Itial factor (sometimes called the...
The Arrhenius equation shows the relationship between the rate constant k and the temperature T in kelvins and is typically written as k=Ae−Ea/RT where R is the gas constant (8.314 J/mol⋅K), A is a constant called the frequency factor, and Ea is the activation energy for the reaction. However, a more practical form of this equation is lnk2k1=EaR(1T1−1T2) which is mathmatically equivalent to lnk1k2=EaR(1T2−1T1) where k1 and k2 are the rate constants for a single reaction at two different absolute...
Preview File Edit View Go Tools Window Help $ 88% Fri 4:10 AM Q E Screen Shot 2020-03-19 at 9.10.34 PM IQ Û Z @ Q Search Lab 2 - Rates of Chemica...eactions The rate of a certain reaction was studied at various temperatures. The table shows temperature (T) and rate constant (k) data collected during the experiments. Plot the data to answer the questions. What is the value of the activation energy, E, for this reaction? T(K) 1ks-1) 400...
The Arrhenius equation shows the relationship between the rate constant k and the temperature T in kelvins and is typically written as k=Ae−Ea/RT where R is the gas constant (8.314 J/mol⋅K), A is a constant called the frequency factor, and Ea is the activation energy for the reaction. However, a more practical form of this equation is lnk2k1=EaR(1T1−1T2) which is mathmatically equivalent to lnk1k2=EaR(1T2−1T1) where k1 and k2 are the rate constants for a single reaction at two different absolute...
The Arrhenius equation shows the relationship between the rate constant k and the temperature T in kelvins and is typically written as k=Ae−Ea/RT where R is the gas constant (8.314 J/mol⋅K), A is a constant called the frequency factor, and Ea is the activation energy for the reaction. However, a more practical form of this equation is lnk2k1=EaR(1T1−1T2) which is mathmatically equivalent to lnk1k2=EaR(1T2−1T1) where k1 and k2 are the rate constants for a single reaction at two different absolute...
There are several factors that affect the rate of a reaction. These factors include temperature, activation energy, steric factors (orientation), and also collision frequency, which changes with concentration and phase. All the factors that affect reaction rate can be summarized in an equation called the Arrhenius equation: k=Ae−Ea/RT, where k is the rate constant, A is the frequency factor, Ea is the activation energy, R=8.314 J mol−1 K−1 is the gas constant, and T is the absolute temperature. A certain...
There are several factors that affect the rate of a reaction. These factors include temperature, activation energy, steric factors (orientation), and also collision frequency, which changes with concentration and phase. All the factors that affect reaction rate can be summarized in an equation called the Arrhenius equation: k=Ae−Ea/RT, where k is the rate constant, A is the frequency factor, Ea is the activation energy, R=8.314 J mol−1 K−1 is the gas constant, and T is the absolute temperature. A certain...
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. --...
Can someone please help me finish the tables and calculations. Thanks in advance Data Sheet Part A: Dependence of Reaction Rate on Concentration Table 1 H Temperature Time Relative mixture ! (seconds) | rate 1000 Reaction BrOsl (eC) . 1235.6 Avg. time 2. 67.S 3. 08,24 Avg. time 2. 74.2 3. 70.74.O Avg. time 24.o' 4 弘·11 0.2 OD3 0.00 8 100 o.oy | 23.5 3. 29. Avg. time 교 Table 2: Calculations for the [I']. [Bro, & [H'] BrOs...
The following data show the rate constant of a reaction measured at several different temperatures. Temperature (K)(K) Rate Constant (1/s)(1/s) 310 0.923 320 2.50 330 6.38 340 15.4 350 35.3 Part A Use an Arrhenius plot to determine the activation barrier for the reaction. Express your answer using three significant figures. Part B Use an Arrhenius plot to determine the frequency factor for the reaction. Express your answer using two significant figures.