Chemistry

Recent Answers

2009-11-15 Chemistry (including Biochemistry) - CHEMISTRY (HIGH SCHOOL STANDARD):

Julie, I'm not sure what you mean by a substance's thickness. Do you mean the thickness of the molecules or perhaps the consistency of the substance. In either case it is affected. The most common example

2009-11-11 Thermodynamics - Open Window cooling:

Hi Marisela, There are several factors which have to go into the model. One is the difference in temperature between inside and out. Only if it is hotter inside can any cooling be effected. The other

2009-11-08 Thermodynamics - Thermoelectric Generators?:

Hi Rami These devices are very inefficient (5-8%) and can only usefully be considered with waste heat. They have thermal problems and electrically can only be applied to loads of high resistance.

2009-11-07 Chemistry (including Biochemistry) - chemistry:

the half life is the amount of time it takes for half of the material to be left. So if I had a material and the half life was 8 years that would mean that after 8 years half of what I started with would

2009-11-05 Chemistry (including Biochemistry) - Nitrogen gasoline:

Well, without specific information about what process they have going on I can tell you a few things about Nitrogen that they may be exploiting. Nitrogen has a very high heat of formation and when it is