The following data were collected for the reaction M +N P+ Q a. What is the rate

Question

The following data were collected for the reaction M +N P+ Q a. What is the rate law for the reaction? b. What is the value of the rate constant (with correct units)? The following data were measured for the reaction of nitric oxide with hydrogen: 2 NO(g) + 2 H_2(g) rightarrow N_2 (g) + 2 H_2O(g) a. Determine the rate law for this reaction. b. Calculate the rate constant. c. Calculate the rate when [NO] = 0.050 M and [H_2] = 0.150 M. The decomposition of a certain insecticide in water at 12 degree C follows first-order kinetics with a rate constant of 1.45 yr^-1. A quantity of this insecticide is washed into a lake on June 1, leading to a concentration of 5.0 times 10^-7 g/cm^3. Assume that the temperature of the lake is constant (so that there are no effects of temperature variation on the rate). What is the concentration of the insecticide on June 1 of the following year? How long will it take for the insecticide concentration to decrease to 3.0 times 10^-7 g/cm^3? The conversion of cyclopropane to propene in the gas phase is a first-order reaction with a rate constant of 6.7 times 10^-4 s^-1 at 500 degree C. a. If the initial concentration of cyclopropane was 0.25 M, what is the concentration after 8.8 min? b. How long (in minutes) will it take for the concentration of cyclopropane to decrease from 0.25 M to 0.15 M?

Explanation / Answer

Ans 6.

1) when the concentration of N is kept constant and M is doubled , the rate of reaction also doubles , that means order of reaction with respect to M is 1.

Now when the concentration of M is kept constant and N is tripled , the rate of reaction becomes 9 times, this means the order of reaction with respect to N is 2.

So the rate law is given as

R = K [M]1 [N]2

2) K = R / [M] [N]2

K= 2.5 × 10-3 / (0.010) (0.010) 2

K = 2500 mol-2L2s-1

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.