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WayneL
science forum beginner
Joined: 03 May 2005
Posts: 33
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 Posted: Tue May 30, 2006 2:57 pm Post subject:
Delta G for Cu(OH)2
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I am trying to find the DeltaG value for "Cu(OH)2".
I have looked in the latest CRC book but this figure is missing but is does
show the DeltaH value.
Could anyone help either convert this figure or point me to a source where I
can get the figure?
Also, why would this figure be omitted?
Cheers
WayneL |
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Patrick Wüstenberg
science forum beginner
Joined: 30 May 2006
Posts: 1
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| Posted: Tue May 30, 2006 7:00 pm Post subject:
Re: Delta G for Cu(OH)2
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WayneL wrote:
| Quote: | I am trying to find the DeltaG value for "Cu(OH)2".
I have looked in the latest CRC book but this figure is missing but is
does show the DeltaH value.
Could anyone help either convert this figure or point me to a source where
I can get the figure?
Also, why would this figure be omitted?
|
I suppose you want the deltaG(0) value?
In case the book features DeltaH(0) and DeltaS(0) values, just use the
Gibbs-Helmholtz equation. Within a certain temperature interval, you can
neglect the temperature dependence of DeltaH and DeltaS. In case your book
features DeltaH and DeltaS for different temperatures or as a function of
temperature, much better.
best regards
Patrick |
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Dieter Britz
science forum beginner
Joined: 04 May 2005
Posts: 45
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| Posted: Wed May 31, 2006 8:30 am Post subject:
Re: Delta G for Cu(OH)2
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WayneL wrote:
| Quote: | I am trying to find the DeltaG value for "Cu(OH)2".
I have looked in the latest CRC book but this figure is missing but is
does show the DeltaH value.
Could anyone help either convert this figure or point me to a source where
I can get the figure?
Also, why would this figure be omitted?
|
It might be subject to the Official Secrets Act {:]
I found it in my trusty Aylward "SI Chemical Data":
-373 kJ/mol
--
Dieter Britz, Kemisk Institut, Aarhus Universitet |
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WayneL
science forum beginner
Joined: 03 May 2005
Posts: 33
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| Posted: Wed May 31, 2006 1:28 pm Post subject:
Re: Delta G for Cu(OH)2
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Cheers again Dieter. I just gone and bought the book.
WayneL
"Dieter Britz" <britz@chem.au.dk> wrote in message
news:e5jkhq$h6c$2@news.net.uni-c.dk...
| Quote: | WayneL wrote:
I am trying to find the DeltaG value for "Cu(OH)2".
I have looked in the latest CRC book but this figure is missing but is
does show the DeltaH value.
Could anyone help either convert this figure or point me to a source
where
I can get the figure?
Also, why would this figure be omitted?
It might be subject to the Official Secrets Act {:]
I found it in my trusty Aylward "SI Chemical Data":
-373 kJ/mol
--
Dieter Britz, Kemisk Institut, Aarhus Universitet |
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| Back to top |
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Lasse Murtomäki
science forum beginner
Joined: 17 Jun 2005
Posts: 35
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| Posted: Fri Jun 02, 2006 9:11 am Post subject:
Re: Delta G for Cu(OH)2
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Enthalpy of formation of Cu(OH)_2(s): -450 kJ/mol
Source: G. Aylward, T. Findlay, SI Chemical Data, 5th ed., John Wiley
Australasia Ltd., 2002
Acquire this volume, it contains 'everything', at rather modest price.
Lasse Murtomäki
Helsinki Univ. Tech.
Lab.Phys.Chem.Electrochem.
lasse.murtomaki@tkk.fi |
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