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Biology; Chemistry; Physics: Post your doubts here!

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^ Not directly but the concept is required. And Concept means ... it should be learned.
 
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GetSomeLife said:
SalmanPakRocks said:
hmmm what do u mean by mixing Acid and NAOH ??
I mean acid + Base will result in Salt + water i.e neutrilization.

Its got nothin to do wid the products....the question just asks how do we confirm the formula
H2O + H2SO4 = H2SO4 + H2O
 
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multixamza01 said:
^ Not directly but the concept is required. And Concept means ... it should be learned.

But it was never asked before
 
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SalmanPakRocks said:
GetSomeLife said:
SalmanPakRocks said:
hmmm what do u mean by mixing Acid and NAOH ??
I mean acid + Base will result in Salt + water i.e neutrilization.

Its got nothin to do wid the products....the question just asks how do we confirm the formula
H2O + H2SO4 = H2SO4 + H2O

Not exactly...something changes
Otherwise y did my teaher gave the question fer 3 marks!!!
 
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People the Syllabus content only OUTLINES the syll. It's what the Candidates SHOULD know.
 
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Not exactly...something changes
Otherwise y did my teaher gave the question fer 3 marks!!!
I don't know. But never encountered these kind of question in past paper.
Obviously when u add water to the any acid or base it dilutes it.
 
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multixamza01 said:
People the Syllabus content only OUTLINES the syll. It's what the Candidates SHOULD know.
can u plz point out that, where is it written in the syllabus?
 
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Actually our teacher said it too it isnt in the syllabus, but we should prepare it.
like Alkaline and Acidic fuel cells...

when H2O is added to HCL, it forms H30 and CL,
something similar would be applicable here I believe.
 
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I guess not because we are using adjusting the FORMULA which is totally unapplicable.
I m still doubtful about the cholrine one.
 
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Still I think its wrong because we aren't making the correct Formula
anyways will someone like to help me out?

I need help in Thermal Physics (O levels)
Please Define
1)Heat Capacity:
2) Specific Heat Capacity:
3) Latent Heat of Fusion:
4) Specific Latent Heat of Fusion:
5) Latent Heat of Vaporisation:
6) Specific Latent Heat of Vaporisation:
Also if there is any formula for these then do let me know.
 
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SalmanPakRocks said:
I guess not because we are using adjusting the FORMULA which is totally unapplicable.
I m still doubtful about the cholrine one.

Actually, the chlorine thing too is, "stretching the syllabus"...

It is correct.. our teacher was telling something like that before the Exam..I clearly remember..
 
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I dont remember exact definition now...

formulas are:

Specific heat capacity:

Q = mc Δ Θ

c= specific heat capacity
m= mass
Δ Θ: change in temperature
Q= energy provided.

Heat capacity:

Q= cΔ Θ


Latent Heat of Fusion
Latent Heat of Vaporisation

l = latent heat of vapourisation/fusion
 
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SalmanPakRocks said:
I need help in Thermal Physics (O levels)
Please Define
1)Heat Capacity:
2) Specific Heat Capacity:
3) Latent Heat of Fusion:
4) Specific Latent Heat of Fusion:
5) Latent Heat of Vaporisation:
6) Specific Latent Heat of Vaporisation:
Also if there is any formula for these then do let me know.

^Where's your Physics book? :)
 
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