1)The data below were collected for the following reaction:
CH3Cl(g)+3Cl2(g)→CCl4(g)+3HCl(g)

[CH3Cl](M)	[Cl2](M)	Initial Rate (M/s)
0.050	0.050	0.014
0.100	0.050	0.029
0.100	0.100	0.041
0.200	0.200	0.115

A

Calculate the value of the rate constant, k.

B

What is the overall order of the reaction?

2)

t (s)	[A] (M)	ln[A]	1/[A]
0.00	0.500	−0.693	2.00
20.0	0.389	−0.944	2.57
40.0	0.303	−1.19	3.30
60.0	0.236	−1.44	4.24
80.0	0.184	−1.69	5.43

What is the activation energy of this reaction?

3)

The decomposition of XY is second order in XY and has a rate constant of 7.08×10⁻³ M−1⋅s−1at a certain temperature.

-

If the initial concentration of XY is 0.140 M, how long will it take for the concentration to decrease to 6.80×10⁻² M?

4)

The rate constant of a chemical reaction increased from 0.100 s−1 to 2.70 s−1 upon raising the temperature from 25.0 ∘C to 55.0 ∘C.

A"SOLVED"

−3.07×10−4

K−1

B

Calculate the value of ln(k1k2) where k1 and k2 correspond to the rate constants at the initial and the final temperatures as defined in part A.

C

What is the activation energy of the reaction?

5)

The rate constant (k) for a reaction was measured as a function of temperature. A plot of ln k versus 1/T(in K) is linear and has a slope of−1.02×10⁴ K.

Calculate the activation energy for the reaction.

6)

Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. The osmotic pressures required for this process can be as high as 19.1 atm. What would the molar concentration of the tree sap have to be to achieve this pressure on a day when the temperature is 28 ∘C?