Hi to you all. I hardly wait to see you and your
country this year. But before that, we must do some job, and prepare our
students.
And this is my question: I think I found two
mistakes in physical chemistry preparatory problems and solutions (which we just
get tuesday, thank you).
1. Problem 2: kinetic model of the
gas. In calculating the volume of collision
cylinder, we should use relative average speed, which is average speed,
multiplied by square root of number two. So: V (cylinder) = sigma . v(relative)
= sigma.sqrt(2). v (average). Then the solution of problem 2-2 and further
problems is different for exactly square root of 2 (compared to the solutions
you sent us).
2. Problem 36: on the page 73, there is description
of the Michaelis Menten mechanism, and solving for (ES) (second line up from
bottom of the page) gives just Km in the denominator, and not Km+(S), as it
stands in description.
Please pass my comment to the person in charge of
the preparation of the problems.
In general, the problems are very good and
connected to real life. Especially I like the introduction, where the subject is
inner and outer space.
Thank you, and see you soon
Sincerely yours
Andrej Godec,mentor,Slovenia,
Europe
