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Article: Research from E. Marrero and colleagues has provided new data on chemical thermodynamics.
- Article from:
- Chemicals & Chemistry
- Article date:
- March 27, 2009
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"Excess enthalpies H-m(E) and excess volumes V-m(E) obtained at a temperature of 298.15 K and atmospheric pressure are presented for a set of 20 binary mixtures comprised of the first four propyl esters, Cu-1H2u-1COOC3H7 (u = 1 to 4), and five alpha,omega-dichloroalkanes, ClCH2(CH2)(v-2)CH2Cl (v = 2 to 6). All the mixtures are exothermic except for those corresponding to propyl methanoate with v>= 4. The V-m(E) are positive in most mixtures except for those where v = 4, 5, 6, for V-m(E)
"The variation in V-m(E) with the chain length of the compounds of the mixtures studied is not regular since both the enthalpic and the volumetric effects are due to interactions of ...