lect 25

Question 1

what is this lecture overview?

Answer 1

-discussion further aspects of partition equilibria
-discuss a practical example of the Langmuir model of adsorption isotherms in the context of our current environment
-commence discussion of atmospheric chemistry

Question 2

what happens to neutral species?

Answer 2

Question 3

what is the graph of sorption and desorption?

Answer 3

Question 4

how is atrazine pesticide adsorbed?

Answer 4

Question 5

what is adsorbtion of carbanyl pesticide?

Answer 5

Question 6

what is 2,4-D pesticide adsorbed?

Answer 6

Question 7

what is the binding of DDT?

Answer 7

Question 8

what is sorption?

Answer 8

Question 9

what does a larger Kow and Kom mean?

Answer 9

Question 10

what sort of species would be expected to partition into the atmosphere?

Answer 10

Question 11

what are the intermolecular forces?

Answer 11

Question 12

Question 13

what does a net increase in IMFs mean?

Answer 13

Question 14

how can we estimate vapour pressure?

Answer 14

Question 15

what must we also consider?

Answer 15

Question 16

Answer 16

Question 17

Answer 17

Question 18

Answer 18

-the concentration of DCB in water is 0.13 ppm (compared with 0.20ppm in previous example)
-note: the method assumes that the organic matter is the active component in sediment or in soil-water systems

Question 19

what is a simple structure-based calculator for estimating vapor pressure?

Answer 19

Question 20

Answer 20

Question 21

what is table 2?

Answer 21

Question 22

Answer 22

Question 23

Answer 23

Question 24

Question 25