All Questions
Tagged with aqueous-solution thermodynamics
37
questions
6
votes
1
answer
3k
views
Is 4-nitrobenzaldehyde or 4-aminobenzaldehyde more likely to be hydrated?
Of 4-nitrobenzaldehyde and 4-aminobenzaldehyde, which has the higher $\ce{K_{eq}}$ of hydration?
$\qquad \qquad$
Steric factors can likely be ignored in this problem since we are dealing with ...
- 19k
5
votes
1
answer
486
views
Thermodynamics behind Deliquescence?
The phenomenon of deliquescence wherein a water soluble substance absorbs water from atmosphere and dissolve in it forming a saturated solution, has thermodynamic roots. I have read the fact that the ...
- 6,795
30
votes
3
answers
30k
views
Why do salts such as NaCl dissolve?
If we look at solubility of salts in water, we are told that they disassociate, because the positive $\ce{Na}$ ion is attracted to the partially negative oxygen in water and the negative $\ce{Cl}$ is ...
- 3,479
7
votes
2
answers
13k
views
Azeotropes and separation by distillation?
I have just recently learnt the theory of fractional and normal distillations and the basics of maximum and minimum boiling azeotropes.
Most books say that the components of the mixture forming an ...
- 6,795
4
votes
1
answer
2k
views
How is hydration free energy of a solute measured experimentally?
I am reading a paper (Shirts, M. R.; and Pitera, J. W. and Swope, W. C. and Pande, V. S. J. Chem. Phys. 2003, 119, 5740-5761). Near the beginning of the paper (page 5745), the authors state:
...
- 1,053
6
votes
1
answer
20k
views
Is there a way to calculate how fast water will cool?
Is there a way to calculate how fast water will cool if you know the water's starting temperature and temperature of the environment that you put it in, such as a freezer?
- 163
19
votes
1
answer
889
views
Deliquescence/efflorescence: How can I convert between salt concentration and RH?
I am looking at two phase diagrams, one has axes of $T$ and $\%\ce{MgClO4}$ in a $\ce{H2O-MgClO4}$ mix, and the other has axes of $T$ and relative humidity. The authors of the second phase diagram say ...
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