Please help me find the value of -Ea/R from ln k' vs 1/T graph
Homework Answers
The trendline equation is y = -5435.x + 3.881
Comparing with Arrhenius equation :
lnK’ = lnA + (-Ea / RT)
slope = -Ea/R = -5435 K
this implies that Ea = 5435 x R
unit of slope is Kelvin and unit of R is JK-1
Ea = 5435 x 8.314 J = 45186.59 J = 45.18659 KJ
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Please help me find the value of -Ea/R from ln k' vs 1/T graph
E. Determination...
ln(k) = -E_a/R 1/T + ln(A) A plot of ln (k)versus 1/T result in a straight...
ln(k) = -E_a/R 1/T + ln(A) A plot of ln (k)versus 1/T result in a straight line with a slope = -E_a/R. The value of E_a can then be calculated using the value of R and to the slope of the line. This experiment uses the Arrhenius equation, which relates the temperature and specific reaction rate constant to determine the activation energy for the crystal violet reaction. The reaction will be performed at different temperatures. Once the order of reaction...
4. Include a graph (made in Excel) of In(rate) vs. 1/T (where T is in Kelvin)....
4. Include a graph (made in Excel) of In(rate) vs. 1/T (where T is in Kelvin). The slope of this line can be used to determine the activation energy (see Equation 5 of the lab manual) 5. Show the calculation for the determination of the activation energy and report this value (including units!). Time Volume Vol S203 H2O 20 30 20 30 20 30 20 30 20 30 Vol HCI Temp Initial 5 10.2 20. 6 5 29. 7 45.2...
*****Help me find Ea in j/moles with the slope of -5056.2!! Experiment 4 CHM 112 8....
*****Help me find Ea in j/moles with the slope of
-5056.2!!
Experiment 4 CHM 112 8. Use the following data to prepare an Arrhenius plot to determine activation energy. Follow the excel directions in the procedure section of this lab. a. Use the concentrations from mixture 1 in question 1 to calculate the rate constant, k b. Complete the rest of the table. c. in excel, plot Ink) vs 1/Temp. Use the graph to determine the slope and then the...
Table 3: Experimental Data for Part 2: Determination of Activation Energy k Time* T* [1] [S,0,?]...
Table 3: Experimental Data for Part 2: Determination of Activation Energy k Time* T* [1] [S,0,?] Rate (M/s) (s) (C) (M) (M) Run 3 153 20.5 .0208 .0416 4.03*10^-6 4.65*10^-3 (Room T) Run 6 198 9 .0208 .0416 3.15*10^-6 3.64*10^-3 (Cool) Run 7 112 31 .0208 .0416 5.58*10^-6 6.45*10^-3 (Warm) Run 8 40 51 .0208 .0416 1.56*10^-5 1.80*10^-2 (Warmer) 1/T (1/K) In k Run 3 1/293.5 -5.37 Run 6 1/282 -5.62 Run 7 1/304 -5.044 Run 8 1/324 -4.02 20....
rates of chemical reactions Plz help!! how do I find specific rate constant k, 1/T, In...
rates of chemical reactions
Plz help!! how do I find specific rate constant k, 1/T, In
K
thank you
Rates of Chemical Reactions: Report Form Rate Law Summary: (a) From your measurements, what are the reaction orders with respect to each of the three reactants H;O; HOO (b) What is the rate expression (rate law) for the uncatalyzed reaction? Rate = K LT-] [H202) (c) What is the total reaction order? 2 3. Effect of Temperature on the Reaction Rate...
ln(k) = -E_a/R 1/T + ln(A) A plot of ln (k)versus 1/T result in a straight line with a slope = -E_a/R. The value of E_a can then be calculated using the value of R and to the slope of the line. This experiment uses the Arrhenius equation, which relates the temperature and specific reaction rate constant to determine the activation energy for the crystal violet reaction. The reaction will be performed at different temperatures. Once the order of reaction...
4. Include a graph (made in Excel) of In(rate) vs. 1/T (where T is in Kelvin). The slope of this line can be used to determine the activation energy (see Equation 5 of the lab manual) 5. Show the calculation for the determination of the activation energy and report this value (including units!). Time Volume Vol S203 H2O 20 30 20 30 20 30 20 30 20 30 Vol HCI Temp Initial 5 10.2 20. 6 5 29. 7 45.2...
*****Help me find Ea in j/moles with the slope of
-5056.2!!
Experiment 4 CHM 112 8. Use the following data to prepare an Arrhenius plot to determine activation energy. Follow the excel directions in the procedure section of this lab. a. Use the concentrations from mixture 1 in question 1 to calculate the rate constant, k b. Complete the rest of the table. c. in excel, plot Ink) vs 1/Temp. Use the graph to determine the slope and then the...
Table 3: Experimental Data for Part 2: Determination of Activation Energy k Time* T* [1] [S,0,?] Rate (M/s) (s) (C) (M) (M) Run 3 153 20.5 .0208 .0416 4.03*10^-6 4.65*10^-3 (Room T) Run 6 198 9 .0208 .0416 3.15*10^-6 3.64*10^-3 (Cool) Run 7 112 31 .0208 .0416 5.58*10^-6 6.45*10^-3 (Warm) Run 8 40 51 .0208 .0416 1.56*10^-5 1.80*10^-2 (Warmer) 1/T (1/K) In k Run 3 1/293.5 -5.37 Run 6 1/282 -5.62 Run 7 1/304 -5.044 Run 8 1/324 -4.02 20....
rates of chemical reactions
Plz help!! how do I find specific rate constant k, 1/T, In
K
thank you
Rates of Chemical Reactions: Report Form Rate Law Summary: (a) From your measurements, what are the reaction orders with respect to each of the three reactants H;O; HOO (b) What is the rate expression (rate law) for the uncatalyzed reaction? Rate = K LT-] [H202) (c) What is the total reaction order? 2 3. Effect of Temperature on the Reaction Rate...
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