Download or read book Effect of Pressure on the Hydrolysis of Methyl Acetate and Ethylene Oxide in Acetone Water Mixtures Quantities of Activation at Constant Volume and the Isokinetic Pressure written by B. T. Baliga and published by . This book was released on 1964 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extension of the concept of isokinetic conditions into the dimension of pressure is discussed. The use of the enthalpy and entropy of activation at constant pressure and of the energy and entropy of activation at constant volume to characterize activated processes is discussed, and it is concluded that neither set can be rigorously justified as easier to understand, but that the constantvolume parameters are probably to be preferred most of the time. The effect of pressure up to 3 kbar on the rate of the acid-catalyzed hydrolysis of methyl acetate and ethylene oxide in acetone+water mixtures was measured. The constant-volume parameters of activation for the acid-catalyzed hydrolysis of methyl acetate vary with solvent in a less complicated way than the constantpressure parameters, the minima in the constantpressure parameters not being present in the constantvolume parameters. The existence of the minima in the constant-pressure parameters is ascribed mainly to the large change of thermal expansivity when an organic liquid is added to water. The effect of solvent on the rate of hydrolysis of methyl acetate is dependent on the pressure, and reverses sign at about 2 kbar. The implications of this observation in the determination of reaction mechanisms is discussed. (Author).

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transactions of the Faraday Society written by Faraday Society and published by . This book was released on 1965 with total page 1322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1965 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NRC Review written by National Research Council of Canada and published by . This book was released on 1967 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Development Reports written by and published by . This book was released on 1965-06-05 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The National Research Council Review written by National Research Council of Canada and published by . This book was released on 1966 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The National Research Council Review written by and published by . This book was released on 1965 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review of Activities written by National Research Council Canada and published by . This book was released on 1966 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Current Chemical Papers written by Chemical Society (Great Britain) and published by . This book was released on 1965 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt: A classified world list of new papers in pure chemistry.

Download or read book High Pressure Bibliography 1900 1968 Subject index written by and published by . This book was released on 1970 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Pressure Bibliography 1900 1968 written by and published by . This book was released on 1970 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1965 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1965 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1965 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IBZ written by and published by . This book was released on 1966 with total page 1706 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EFFECT OF PRESSURE ON THE ACID CATALYZED ENOLIZATION OF ACETONE AND ACETOPHENONE IN VARIOUS ETHANOL WATER SOLVENTS ORIGIN OF THE ENTHALPYENTROPY COMPENSATION EFFECT written by and published by . This book was released on 1964 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of pressure, temperature, and solvent composition on the rate of the acidcatalyzed enolization of acetone and acetophenone, and the solvent deuterium isotope effect for the enolization of acetophenone, were measured by following the iodination. The solvent deuterium isotope effect for the enolization of acetophenone in 16.2% w/w ethanol-water is 2.50= 0.05, which undoubtedly proves that there is a preequilibruium proton transfer. The effect of solvent in the range water to 33.4% w/w ethanol in water on the rate of enolization of both acetone and acetophenone is small at atm pressure, but is about four times larger at 3 kbar. This cannot be explained on simple electrostatic grounds, and indicates that any simple electrostatic explanation of the solvent effect at atmospheric pressure is invalid. The volumes of activation for the enolizations are strongly dependent on the solvent. An examination was made of the enthalpy-entropy compensation effect. In general, if the rate of equilibrium constant of a reaction does not change with changing conditions then either the quantities of activation at constatn pressure.