~GrOoVy~
*cough* hahahhaa *cough*
can someone model an equilibrium reaction for me coz we didn't do this bit in class
ta
Groovy
ta
Groovy
Modelling an equilibrium (1 Viewer)
- Thread starter ~GrOoVy~
- Start date
sikeveo
back after sem2
hsc.csu.edu
There's one about people dancing on that site.
There's one about people dancing on that site.
jetfan
Half Back Flanker
well we performed a fairly good one. What you need is a 10mL and 2 mL pipette(i think thats the one, its the one with a tap you use in titration.)
What you then do is get two measuring cylinders, fill one to 100mL, leave the other one empty. Then you turn the 10mL upside down, put it in the full cylinder place your thumb over the open tap and transfer this water to the other test tube. Then use the 2 mL one to transfer some of this water back to cylinder A. What will hapeen is that the water level in cylinder A will slowly lower, decreasing the amount of water being transferred to cylinder B, but at the same time the level in cylinder B will gradually rise, causeing slightly more water being transferred BACK. This will lead to fwd reaction = rev. reaction, meaning equilibrium. This works fairly well, but it is only a model.
The second part to the experiment involves pouring about 10mL water into cylinder A, then continuing with the above process, modelling an equilibrium that has to shift. Hope this all helps, good luck in your exams
--jetfan--
What you then do is get two measuring cylinders, fill one to 100mL, leave the other one empty. Then you turn the 10mL upside down, put it in the full cylinder place your thumb over the open tap and transfer this water to the other test tube. Then use the 2 mL one to transfer some of this water back to cylinder A. What will hapeen is that the water level in cylinder A will slowly lower, decreasing the amount of water being transferred to cylinder B, but at the same time the level in cylinder B will gradually rise, causeing slightly more water being transferred BACK. This will lead to fwd reaction = rev. reaction, meaning equilibrium. This works fairly well, but it is only a model.
The second part to the experiment involves pouring about 10mL water into cylinder A, then continuing with the above process, modelling an equilibrium that has to shift. Hope this all helps, good luck in your exams
--jetfan--
jetfan
Half Back Flanker
yeah, thats what my process is, it is a model of a chemical equilibrium, should be fine
~GrOoVy~
*cough* hahahhaa *cough*
thanks for the model jetfan but can you tell me some limitations...my minds gone blank right now, so can't think of any.
jetfan
Half Back Flanker
well this model only sccounts for a simple reaction, no molr ratios are considered, so we can't show how an equilibrium is affected by a change in pressure, an change in temperature won't affect it either.
here download the cssa 2004 trial as i said in my previous post
http://www.boredofstudies.org/mirror/2004/2004_Chem_T_CSSA_q.pdf
http://www.boredofstudies.org/mirror/2004/2004_Chem_T_CSSA_s.pdf
http://www.boredofstudies.org/mirror/2004/2004_Chem_T_CSSA_q.pdf
http://www.boredofstudies.org/mirror/2004/2004_Chem_T_CSSA_s.pdf
~GrOoVy~
*cough* hahahhaa *cough*
I checked out the CSSA one...its kinda confusing.
What if they do ask us to model out an equilibrium reaction that is being affected by pressure.
What if they do ask us to model out an equilibrium reaction that is being affected by pressure.