speed of diffusion
Moderators: honeev, Leonid, amiradm, BioTeam

 Garter
 Posts: 12
 Joined: Fri Jun 10, 2005 1:21 pm
speed of diffusion
I am having trouble understanding how to calculate speed of diffusion. The lab book states "multiply the length of time and the distance moved by 6 in order to calculate the speed of diffusion:______mm/hr." I do not understand how to do this calculation. The length of time I have is 10 mins and the distance moved is 9.2 m.
This may be a simple mathematical equation, but I have not been in school in _at_ 25 yrs, and it is boggling my old brain. Any help is appreciated
This may be a simple mathematical equation, but I have not been in school in _at_ 25 yrs, and it is boggling my old brain. Any help is appreciated
What is this multiply by 6? I maybe could understand 60 as that would change hours into minutes or whatever.
I don't if there is a special calculation for diffusion but I would just do this:
10 mins = 0.166 hr (10/60)
9.2m = 9200mm.
so 9200/0.166 = 55,200 mm/hr.
Anyone want to tell me im wrong. or right?
I don't if there is a special calculation for diffusion but I would just do this:
10 mins = 0.166 hr (10/60)
9.2m = 9200mm.
so 9200/0.166 = 55,200 mm/hr.
Anyone want to tell me im wrong. or right?

 Garter
 Posts: 12
 Joined: Fri Jun 10, 2005 1:21 pm
Easy but the explanation is bad. In fact what you are supposed to do is
1/(9200*6) and you get the good result. Why simply because you are in fact calculating:
(1/6)*(1/9200)
The first part of the equation is the conversion of time into hours 10 minutes= 1/6 of an hour
Or multiply the time by 6, convert minutes in hour (yeah I know: 1 hour) and divide this by the distance multiplied by 6.
Chris4 Explanation is probably better, but those completely stupid explanations fits with your text...
HTH
Patrick
1/(9200*6) and you get the good result. Why simply because you are in fact calculating:
(1/6)*(1/9200)
The first part of the equation is the conversion of time into hours 10 minutes= 1/6 of an hour
Or multiply the time by 6, convert minutes in hour (yeah I know: 1 hour) and divide this by the distance multiplied by 6.
Chris4 Explanation is probably better, but those completely stupid explanations fits with your text...
HTH
Patrick
Who is online
Users browsing this forum: No registered users and 11 guests