The rate constants for the first order decomposition of an organic compound in solution are measured at several temperatures: k (s-¹) 0.00492 0.0216 0.0950 0.326 T (K) 278 288 298 308 Perform linear regression using the given data and fill in the information being asked for. Slope of the line: y-intercept of the line: 1.15 318 r² value of regression: Activation energy of the reaction (with units, rounded off to two decimal places): Arrhenius constant of the reaction (with units, rounded off to two decimal places);

The rate constants for the first order decomposition of an organic compound in solution are measured at several temperatures: k (s-¹) 0.00492 0.0216 0.0950 0.326 T (K) 278 288 298 308 Perform linear regression using the given data and fill in the information being asked for. Slope of the line: y-intercept of the line: 1.15 318 r² value of regression: Activation energy of the reaction (with units, rounded off to two decimal places): Arrhenius constant of the reaction (with units, rounded off to two decimal places);

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The rate law for the decomposition of A→P is investigated by measuring the initial rate of the reaction for several concentrations of A. The data are shown below. Assuming that the rate law is of the form v=k[A]n, use a graphical method to determine the value of n. [A]/M Initial Rate/(Torr s-1) [A]/M Initial Rate/(Torr s-1) 1.000 0.1422 0.700 0.0718 0.950 0.1248 0.650 0.0625 0.900 0.1123 0.600 0.0518 0.850 0.0983 0.550 0.0445 0.800 0.0857 0.500 0.0382 0.750 0.0782
In a study of the gas phase decomposition of dinitrogen pentoxide at 335 K N₂O5(g) 2 NO₂(g) + 1/2O₂(g) the concentration of N₂O5 was followed as a function of time. It was found that a graph of In [N₂O5] versus time in seconds gave a straight line with a slope of -7.00x 10-3 s-¹ and a y-intercept of -1.96. Based on this plot, the reaction is order in N₂O5 and the rate constant for the reaction is
2. Consider the kinetic data of the reaction of P + 2 Q + 2+ - PQ, + Z*and answer the succeeding questions: Experiment P (M) Q (M) Temp ("C) Initial Rate, M/s 1 0.01150 0.01200 0.00000 25 4.80 x 10-4 2 0.02300 0.01200 0.00000 25 1.92 x 10-3 3 0.01150 0.02400 0.00000 25 9.60 x 10-4 4 0.04600 0.01200 0.00000 25 7.68 x 10-3 5 0.01150 0.04800 0.00000 25 1.92 x 10-3 6 0.01150 0.01200 0.00000 10 5.10 x 10-5 0.01150 0.01200 0.00000 40 4.55 x 10-3 0.01150 0.01200 0.00500 10 4.98 x 10-5 0.01150 0.01200 0.01050 25 4.82 x 104 10 0.01150 0.01200 0.02100 40 4.44 x 10-3 A. Determine the rate order with respect to P. Determine the rate order with respect to Q. C. Determine the rate law of the reaction. What is the average rate constant? Indicate the appropriate units. E. What is the energy of activation and frequency factor of the reaction without the additive ion? Include the equation of the best fit line of the Arrhenius equation and RSQ Note: Use the calculated rate constant in set up 1 for 25°C…
The following data was obtained for the decomposition of X2 in the gas phase. X2→Y + Z 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 (hr) [X2] 0.250 0.213 0.182 0.155 0.133 0.113 0.097 | 0.082 0.070 0.060 0.051 a. Determine the rate constant for this reaction. b. How much X2 is left if 0.457 M of the gas is allowed to decompose for 1.75 hours? c. What is the half-life of 0.892 M X2?
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The specific rate constant for the first-order decomposition of -1 N₂O5 (9) to NO2 (g) and O₂ (g) is 7.48 × 10-³ s¯ at a given temperature. Find the length of time required for the total pressure in a system containing N₂O5 at an initial pressure of 0.110 atm to rise to 0.150 atm . Express your answer using two significant figures. VE ΑΣΦ t = Submit Part B t = Submit Request Answer Find the length of time required for the total pressure in a system containing N₂O5 at an initial pressure of 0.110 atm to rise to 0.220 atm . Express your answer using two significant figures. ΨΕ ΑΣΦ Part C Request Answer ? Find the total pressure after 120 s of reaction. S S
The equilibrium NH3(aq) + H2O(l) ↔NH4+(aq) + OH−(aq) at 25 °C is subjected to a temperature jump which slightly increases the concentration of NH4+(aq) and OH−(aq). The measured relaxation time is 7.61 ns. The equilibrium constant for the system is 1.78 × 10−5 at 25 °C, and the equilibrium concentration of NH3(aq) is 0.15 mol dm−3. (c) Calculate the rate constant for the reverse reaction. krev = _____________. Just value in 3 sig. fig., in normal or exponential format, e.g. 1.16E6 meaning 1.16 x 106 must use capital E. Choose a unit in the next question.
For the gas phase decomposition of bromoethane, CH;CH,Br >C,H4 + HBr -1 the rate constant in s has been determined at several temperatures. When In k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of-2.63x104 K and a y-intercept of 29.6. The value of the rate constant for the gas phase decomposition of bromoethane at 703 K is -1 (Enter your answer to one significant figure.)
Calculate the ratio of rates of catalyzed to non-catalyzed reactions at 37°C, given that the Gibbs energy of activation for a particular reaction is reduced from 100 kJ/mol to 10 kJ/mol. Ans: 1.5 x 1015
In a study of the rearrangement of cyclopropane to propene at 500 °C (CH₂)3 CH3CH=CH₂ the concentration of (CH₂)3 was followed as a function of time. It was found that a graph of In[(CH₂)3] versus time in seconds gave a straight line with a slope of -9.38×104 s¹ and a y-intercept of -2.02. Based on this plot, the reaction is order in (CH₂)3 and the rate constant for the reaction is
For the gas phase decomposition of t-butyl propionate,C2H5COOC(CH3)3(CH3)2C=CH2 + C2H5COOHthe rate constant in s-1 has been determined at several temperatures. When ln k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -1.97×104 K and a y-intercept of 29.5. The value of the rate constant for the gas phase decomposition of t-butyl propionate at 530 K is _______s-1. (Enter your answer to one significant figure.)
The following data were obtained for the adsorption of a certain material (ORA) on activated carbon at 25 °C. Sample Activated carbon mass [ORA) initial (M) (g) 1.0119 [ORA] at equilibrium (M) 0.0044 number 1 0.0096 1.0186 0.0289 0.0207 3 1.0360 0.0578 0.0446 1.0129 1.0393 4 0.0867 0.0721 5 0.1156 0.1002 0.1445 0.1926 6 1.0312 0.1270 1.0198 0.1742 8 1.0270 0.2407 0.2227 9. 1.0252 0.2889 0.1108 4. If a monolayer of N2 molecules is 0.03075 mole per one gram of activated carbon, and the surface area on one N2 molecules is 0.162 nm², determine: a. surface area per one gram of activated carbon b. surface area of one ORA molecule