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Chemistry Help HERE ONLY !!
Bani:
--- Quote from: ManaH on May 27, 2009, 07:20:38 pm ---Can someone explain me Q5 (p3 M/J 08)
its equlibirum i
i need to understand
I POSTION OF EQULIBRUM n WHAT HAPPENEDS ??? ???
--- End quote ---
Q5ai) The concentration of the reactants will increase (as the equilibrium shifts to the left) and the concentration of the products will decrease.
*Equilibrium justmeansthe 'balance' of a reaction; when it says the equilibrium shifts left, it refers to the fact that the reaction goes backwards and instead of producing more products, the reactants are produced.
5aii)-The position shifts to the left because decreasing the pressure on the reaction favours the side of the equation with the highest volume of gases (a.k.a. moles/molecules of gas).
5b)-The forward reaction is exothermic, because a decrease in temperature favours the forward reaction, so it must be exothermic.
Our teacher told us to think of the equlibrium like this: there is a naugty boy and he does exactly the opposite of what you tell him to do. So, using the above scenario, lowering the pressure favours the side with higher volume of gas. And, lowering the temperature favours the exothermic temperature (heat given out). If you see, in both the cases the opposite is happening.
I hope its clear :)
lana:
ok i know it's a stupid question but i think my mind just stopped !!
when I2 reacts with Cl2 what is the product ? and how did you find it ?
thanks
sweetsh:
Is that a question in the past papers?!
X Abdulrahman X:
yep and thats in p3, MJ05 Q1
lana:
ya that's right in the mark scheme the answer is I2 + 3Cl2 = 2ICl3 but i cant figure out why ??
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