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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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STUDIA CHEMIA - Ediţia nr.1-2 din 1998 | |||||||
Articol: |
SIMULTANEOUS DETERMINATION OF RATE CONSTANTS FOR FIRST ORDER CONSECUTIVE IRREVERSIBLE REACTIONS. Autori: ALEXANDRA RUSTOIU-CSAVDARI, IOAN BÂLDEA, DOINA PASERE. |
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Rezumat: A method for simultaneous experimental determination of rate constants for a first-order, two stage, irreversible process is proposed. It is based on the monitoring of a commun product.The first and second rate coefficient are determined at small and high reaction degrees, respectively. The obtained values are independent from each other. The method is ilustrated for the acvation of trans-dibromo-bis-dymethylglyoximato-cobalt (III) acid. Its evolution was monitored by potentiometrical means. Kinetic parameters are reported for a variety of experimental conditions . Activation parameters have been calculated and a dissociative monomolecular substitution mechanism is proposed for both the stages. | |||||||
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