A chemistry graduate student is studying the rate of this reaction: 2NH, (g)-N₂ (g) + 3H₂(g) He fills a reaction vessel with NH, and measures its concentration as the reaction proceeds: [NH,] time (milliseconds) 0 10. 0.800 M I Don't Know 0.178M 20. 0.100M 30, 0.0696M 40. 0.0533 M Use this data to answer the following questions. Write the rate law for this reaction. Calculate the value of the rate constant k Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol, Submit rate=0 A =

Consider this reaction:                        A    +    B    →    C    +    D Expt. [A] (M) [B] (M) Initial Rate (M/s) 1 0.100 0.100 0.152 2 0.100 0.200 0.152 3 0.200 0.200 0.305   What is the overall reaction order for this reaction?

A chemistry graduate student is studying the rate of this reaction: 2SO3 (g) 2So, (g) +0, (g) He fills a reaction vessel with SO, and measures its concentration as the reaction proceeds: time [so,] olo (seconds) 18 0.200M Ar 0.10 0.127M 0.20 0.0805 M 0.30 0.0511 M 0.40 0.0324M Use this data to answer the following questions. Write the rate law for this reaction. rate = k|| x10 Calculate the value of the rate constant k.

Classify the actions based on how they could affect a reaction rate. Rate increases Rate decreases Rate is unaffected Answer Bank decrease the concentration of a reactant decrease the surface area of a solid reactant increase the temperature add a catalyst

7. Reactions A and B were studied and found to produce the given energy diagrams. 150 150 Energy 100 (kJ/mol) 100 Energy (kJ/mol) 50 50 Reaction progress Reaction progress Reaction A Reaction B A third reaction, C was studied with a measured activation energy of 55 KJ/mol. Assume all reactions take place at the same temperature. Reaction A is slowest a. b. Reaction B is slowest c. Reaction C is slowest d. All reactions happen at the same rate.

In the following reaction between NO and H2 the average rate of change in the concentration of NO is -7.0 x 10-3 M s-1. What is the average rate of change in the concentration of N2 during the same time?     7.0 x10-3 M s-1     3.5 x 10-3 M s-1     1.4 x 10-2 M s-1     1.8 x 10-3 M s-

Consider the following data showing the initial rate of a reaction (A→products) at several different concentrations of A. [A](M) Initial rate (M/s) 0.15 0.014 0.30 0.055 0.60 0.220 You may want to reference (Page) Section 14.3 while completing this problem.

n=1

> A Moving to another question will save this response. estion 19 Consider the reaction in aqueous solution: 3r + S20g2- → 13 + 2 SO42- Under a given set of conditions, the concentration of 13 changes from 0,0 M to 7,6 x 10-4 M in 20 seconds. Calculate A[SO2yAt (in mol/L-s) for this time interval. O -6.5 x 10-5 mol/L-s O 5.0 x 10-5 mol/L·s O 1.2 x 10-5 mol/L·s O 7.6 × 10-5 mol/L·s O -5.0 x 105 mol/L-s A Moving to another question will save this response. MacBook Air F6 F5 吕口 F4 F3 F2 F1 #3 24 % 7 6. 4. 2 00

How would each of the following change the rate of the reaction shown here? Drag the appropriate items to their respective bins. decreasing the temperature adding some NO(g) Reaction rate increases 2NO(g) + 2H₂(g) → N2(g) + 2H₂O(g) Submit Request Answer Reaction rate decreases removing some H₂(g) P Pearson adding a catalyst Reset Help Reaction rate remains the same.