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Consider the following data for the first order reaction: Z products time [Z] Os 1.0000M 400...
Consider some first-order X (g)→ Y (g) + Z (g) + U (g). The rate constant for this reaction is 2.7 x 10-4 s-1 at 750oC. Initially only X is present at a pressure of 0.520 atm. What is the pressure of the X at a constant volume after 17 minutes? EXTRA CREDIT: (+ 5 points) Calculate the total pressure of the system described in the previous question at a constant volume after 17 minutes? Hint: Both gaseous reactants and...
Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values. Answer the following questions: (20 points) 78 4.4 74 3.9 68 4 76 4 80 3.5 84 4.1 50 2.3 93 4.7 55 1.7 76 4.9 58 1.7 74 4.6 75 3.4 80 4.3 56 1.7 80 3.9 69 3.7 57 3.1 90 4 42 1.8 91 4.1 51 1.8 a) Calculate the correlation coefficient r (5 points) b) Fit the regression model (predicting...
1. Consider the following reaction: 2N2Os(g) → 4NO2(g) + O2(g), with the rate constant (k (s')) determined as a function of temperature: T(°C) k 2.0 x 105 7.3 x 103 2.7 x 10+ 9.1 x 104 2.9 x 10 50 60 What is the activation energy for this reaction? HINT: You will need to make a plot of these data.
Consider the reaction X Y +Z Which of the following is a possible rate law? a) Rate = k[X] b) Rate = K[Y] c) Rate = k[Y][Z] Rate = k[X][Y] Rate = k[Z] e) Rate 3. What are the units for the rate constant for an overall third order reaction? a) L/mol:s b) LP/mol.s mol/L'S e) L2 For which order reaction is the half-life of the reaction inversely proportional to k, the rate constant? a) zero order b) first order...
Consider some first-order reaction: 3 X (g)→ Y (g) + Z (g). At 534 K 22% of X changes to products in 17.3 min. (a) What is the rate constant for this reaction? (b) What is the half-life of X?
For the first-order reaction X ⟶ products, which of the following graphs is best for determining the activation energy, Ea ? Note: The best choice is the one that yields a straight line graph with the slope directly proportional to Ea . In the options below, T is the kelvin temperature and t is time. (a) k versus 1/T (b) 1 / [X] versus t (c) ln k versus T (d) ln [X] versus t (e) [X] versus t (f)...
Consider the reaction A + B ? products From the following data obtained at a certain temperature, determine the rate law, the order of the reaction, and calculate the rate constant k. Experiment 1: [A] = 1.50 M; [B] = 1.50 M; Initial Rate = 3.20 x 10-1 M/s Experiment 2: [A] = 1.50 M; [B] = 2.50 M; Initial Rate = 3.20 x 10-1 M/s Experiment 3: [A] = 3.00 M; [B] = 1.50 M; Initial Rate = 6.40...
[time] [Z] 4. Suppose the data shown are for the second order reaction: → products. What is the value of the rate constant k? O min 50.000 atm 6.250 3.333 2.273. 5. For a first order reaction (G - products) with k = 0.173 min', suppose a chemist runs the reaction starting with an initial concentration [G]. = 12.0 M. a. How many minutes will it take for [G] to decrease to 4.70 M? b. What [G] will remain after...
1. Consider the following generic reaction for which K = 2.54. 3 Z + Q ⇄ 2 X What is the value of K for the following reaction? 4 X ⇄ 6 Z + 2 Q A. .394 B. 197 C. 6.45 D. .155 2. Consider the following generic reaction for which K p = 5.51 × 105 at 25°C. 2R (g) + A (g) ⇄ 2Z (g) What is the value of K c for the reaction at the...
2843 21. For the reaction in the previous problem, what is AG? Faraday's Constant F - 485 J/(V-mol 190 WOD - 1140 +11402 4 - 2842 22. A solution contains 0.273 M NH CHaq). What concentration of NH,/>) must be added to make a buffer of pH 9.40 0,193 M 0.386 M 4 0.0410 M 4 0317M 3.17M 23. In an aqueous solution, if pou - 8%, what is [HT? pl рон JOH1 88 7 16,3x10* & 1.6*10*M 63.5 x...