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The name given to the force of attraction of the electrons of one atom for the p

ID: 942435 • Letter: T

Question

The name given to the force of attraction of the electrons of one atom for the protons of another atom in close proximity is force London virtual van der Waals Kinetic Give the characteristic of a first order reaction having only one reactant The rate of the reaction is not proportional to the concentration of the reactant The rate of the reaction is proportional to the squareroot of the concentration of the reactant. The rate of the reaction is directly proportional to the concentration of the reactant. The rate of the reaction is proportional to the square of the concentration of the reactant. Foam is an example of a gas dispersed in a liquid a liquid dispersed in a gas a solid dispersed in a liquid a liquid dispersed in a liquid Determine the rate law and the value of k for the following reaction using the data provided: NO_2(g)+O_3(g) right arrow NO_3(g)+O_2(g) Rate=1360 M^-2.5s-1[NO_2]^2.5[O_3] Rate=227 M^-2.5s-1[NO_2][O_3]^2.5 Rate=43 M^-1s-1[NO_2][O_3] Rate=430 M^-2s-1[NO_2]^2[O_3] Give the direction of the reaction, if K >>1: The forward reaction is favored. The reverse reaction is favored. If the temperature is raised, then the forward reaction is favored. If the temperature is raised, then the reverse reaction is favored. CHM 2046 Pre-Post Test

Explanation / Answer

1. c) vandewaals ,because these are very weak coloumbic forces

2. c)

3. b

4.

order w.r.t O3

(0.33/0.66)^n = (1.42/2.84)

n = 1

order w. r.t NO2

(0.1/0.25)^n = (2.84/7.1)

n = 1

1.42 = k (0.1)(0.33)

k = 43.03

answer: c

5. b