Abstract
The enthalpy of precipitation of six common univalent cations with the tetraphenylborate anion has been measured at 25.0°C. Reaction entropies range from -8.24kcal/mole for ammonium to -19.7 kcal/mole for silver(I). The entropy of reaction was computed from the above measurements and the corresponding Gibbs free energy changes. A linear relationship exists between ΔF°′ and ΔH°′. The entropy of precipitation of ammonium ions was +5.0 e.u., an unusually large positive value.
Original language | English (US) |
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Pages (from-to) | 505-511 |
Number of pages | 7 |
Journal | Thermochimica Acta |
Volume | 2 |
Issue number | 6 |
DOIs | |
State | Published - Sep 1971 |
Bibliographical note
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