21 Nov
Posted by: sean in: Chemistry Qns & Ans, Coaching, events
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4 Responses
dona
14|May|2008 1ìm studying for an xam. and i cant cm 2 find n e thing on the fractional distillation of liquid air or fermented liquor . n e help?
[Reply]
sean
15|May|2008 2For fractional distillation, it involves the separation of gases (for liquid air for example) based on the difference in Boling Points of the components that make up air.
[Reply]
dona
16|May|2008 3does his mean that to distill dry air, it must first be compressed to liquid?
[Reply]
JO.
23|May|2008 4hey.thanks a lot for answering my questions previously.
i was wondering if you could help me with this question. it’s something to do with diffusion. the diagram is in this link, http://i22.photobucket.com/albums/b306/Joy1992/diffusionquestion.jpg?t=1211551364
i am not sure if it works. but the question is
‘which one of the following gases when present in the beaker over the porous pot will cause the water level at Y to fall?’
A Carbon Monoxie
B Chlorine
C Nitrogen
D Methane
thanks again.
[Reply]
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