shell
Posts: 2
Joined: Mon Nov 05, 2007 9:14 pm

does the type of container affect the rate of water evaporat

Postby shell » Mon Nov 05, 2007 9:53 pm

does a metal, plastic, or glass container have a different evaporation effect? Does the container mean anything if the surface area, humidity, and room temp stays the same with the evaporation process?
I can not come up with an evaporation amt between the three. Am I wrong? Is there a difference in evaporation. I had for different degrees. (40, 60, 80, and 100) I timed each at 180 min. at 50% humidity. Please help.

shell
Posts: 2
Joined: Mon Nov 05, 2007 9:14 pm

Re: does the type of container affect the rate of water evap

Postby shell » Mon Nov 05, 2007 9:56 pm

shell wrote:does a metal, plastic, or glass container have a different evaporation effect? Does the container mean anything if the surface area, humidity, and room temp stays the same with the evaporation process?
I can not come up with an evaporation amt between the three. Am I wrong? Is there a difference in evaporation. I had for different degrees. (40, 60, 80, and 100) I timed each at 180 min. at 50% humidity. Please help.

ChrisG
Former Expert
Posts: 1019
Joined: Fri Oct 28, 2005 11:43 am
Occupation: Research Hydrologist

Postby ChrisG » Mon Nov 05, 2007 10:47 pm

Hi Shell,
That's a very interesting and important topic. Can you give a little more background information? What is your school grade level? What procedures do you plan to use to test your hypothesis? Do these containers have identical dimensions? Will the containers be exposed to sunlight? Will they be inside or outside? The more information you provide, the more the experts here will be able to help.

It will also be helpful for you to read more information about the process of evaporation. This web page has a decent summary http://www.newton.dep.anl.gov/askasci/c ... m00964.htm
You can find more information by conducting a web search for "evaporation", "evaporation factors", or other relevant terms. If you encounter any terms or concepts that you don't understand, please feel free to ask us for help.

Good luck!

Chris

Craig_Bridge
Former Expert
Posts: 1297
Joined: Mon Oct 16, 2006 11:47 am

Postby Craig_Bridge » Tue Nov 06, 2007 11:18 am

I would recommend that you do some research on thermal convection and thermal conductivity as well has the heat of vaporization to understand some possible properties of the containers that might effect your results. In other words, it is unlikely that the material the container is made out of will directly affect your results; however, the properties of the container materials might.
-Craig


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