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# Heat of Dilution for H2SO4

## Heat of Dilution for H2SO4

(OP)
I am unable to find a suitable value for Heat of Dilution of concentrated H2SO4. I will share my calculation here as well but first I need this value to be settled.

I have x2 documents
1] 95 kJ/mol https://scilearn.sydney.edu.au/firstyear/exams/che...

Background: I am determining cooling load while drying wet Cl2 gas using circulated H2SO4 in a drying packed tower (98w.t% > 78w.t%)

https://files.engineering.com/getfile.aspx?folder=...

### RE: Heat of Dilution for H2SO4

(OP)
Can anyone check my calculations. Especially the part where I calculated the amount of hydrated acid ..bcz this is directly linked with heat generated

Thank pierreick for the help!

### RE: Heat of Dilution for H2SO4

(OP)
pierreick (Chemical),
Extremely thanks for the resource. BTW the last one is valid upto 10 wt% of acid & I am handling 78 - 98%

p-17 of your 2nd last resource. Why the metal loss is highest b/w 80-83wt% of acid while it lowers again at below concentrations than this. Any microscopic stuff happening here?

### RE: Heat of Dilution for H2SO4

Seems to me there might be a tradeoff between availability of the acid molecules at the surface vs. the diffusivity of the free molecules in reaching to the surface.

TTFN (ta ta for now)
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### RE: Heat of Dilution for H2SO4

Heat and material balances By Himelblau

It has the dilution tables for sulfuric acid.

Horacio

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