Total Pressure Method of Reaction-Rate Data Analysis

2003 ◽  
pp. 139-152
Keyword(s):  
Data Analysis ◽  
Total Pressure ◽  
Reaction Rate ◽  
Rate Data ◽  
Pressure Method

THE EFFECTIVENESS OF PRACTICUM KIT AS A LEARNING MEDIA TO TRAIN SPS ON REACTION LAW

2020 ◽  
Vol 3 (2) ◽  
pp. 35
Author(s):  
Sigit Trimayanto ◽  
Dian Novita
Keyword(s):  
Data Analysis ◽  
Research And Development ◽  
Learning Outcomes ◽  
Test Data ◽  
Reaction Rate ◽  
Cognitive Learning ◽  
Science Process Skills ◽  
Is Research ◽  
Post Test ◽  
The Media

This study aims to produce the Practical KIT along with its devices that are effectively used as learning media to train students SPS on the sub material of the Reaction Rate Law. The method used in this study is Research and Development design. The research instrument used consisted of a sheet of pre-test and post-test. Data analysis was carried out in descriptive quantitative to determine the effectiveness of Practical KIT along with the devices developed. The media is said to be effective if it meets 2 requirements, namely the percentage of classical completeness <85% and N-gain value <0.3. The developed media has been declared effective as indicated by the increase in the value of cognitive learning outcomes in the "Medium" and "High" categories with 100% classical completeness, an increase in the value of science process skills of students after using the Practical KIT media. "With classical completeness reaching 91.67%.

Primary Yields and Mechanisms in the Radiolysis of N2O from High Intensity Electron Pulse Irradiations of N2O–O2 Mixtures

1972 ◽  
Vol 50 (10) ◽  
pp. 1557-1567 ◽  
Author(s):  
C. Willis ◽  
A. W. Boyd ◽  
P. E. Bindner
Keyword(s):  
High Intensity ◽  
Reaction Rate ◽  
Electron Pulse ◽  
Rate Data

The yields of N2, O2, NO, and O3 have been measured from the Febetron radiolysis of N2O–O2 mixtures with and without SF6. A mechanism consistent with the yields from 0–100% O2 and with known ionic abundances and reaction rate data has been derived. The major features of this mechanism are both dissociative neutralization of N2O+ and excitation of N2O to give N2(X1Σ) and O(1D) and smaller amounts of N2(B3Π) and O(3P). The large yields of NO and N2 observed are mainly due to reaction of O(1D) with N2O to give both N2 and O2 and NO.

Experimental Phase Equilibrium for the Binary System ofn-Pentane +2-Propanol Using a New Equilibrium Cell and the Static Total Pressure Method

2018 ◽  
Vol 63 (3) ◽  
pp. 732-740 ◽  
Author(s):  
Wayne Michael Nelson ◽  
Sivanna Naicker ◽  
Paramespri Naidoo ◽  
Suresh Ramsuroop ◽  
Deresh Ramjugernath
Keyword(s):  
Phase Equilibrium ◽  
Binary System ◽  
Total Pressure ◽  
Experimental Phase ◽  
Pressure Method ◽  
Experimental Phase Equilibrium

Hydrogen Recombiner: Theoretical Parametric Study

2002 ◽  
Author(s):  
Gilles Avakian
Keyword(s):  
Hydrogen Concentration ◽  
Total Pressure ◽  
Reaction Rate ◽  
Published Data ◽  
Geometrical Parameters ◽  
Surface Kinetics ◽  
Total Rate ◽  
Diffusion Controlled ◽  
Rate Of Reaction ◽  
Linear Behaviour

There is not yet published data concerning a complete overview of the behaviour of a SIEMENS recombiner versus the thermal hydrualic conditions and the geometry of the catalytic plates. This paper reports on a numerical behaviour of the recombiner depending on several gas parameters as the total pressure, and the hydrogen concentration, as well as geometrical parameters of the catalytic elements as the height and the spacing. We use a theoretical model validated by using the KALI experiments. In this model (Avakian, 1999), the reaction rate is diffusion-controlled, i.e. the contribution of surface kinetics to the total rate of reaction is neglected. We demonstrate a quasi-linear behaviour of the recombination rate vs. the total pressure and the hydrogen concentration. We display the benefit in using smaller catalytic plates instead of taller plates and we give an idea of the influence of the spacing between the catalytic plates.

ACTION OF HIGH SPEED ELECTRONS ON METHANE, OXYGEN AND CARBON MONOXIDE

1930 ◽  
Vol 3 (3) ◽  
pp. 241-251 ◽  
Author(s):  
J. C. McLennan F.R.S. ◽  
J. V. S. Glass B.A.
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Water Vapor ◽  
Formic Acid ◽  
Total Pressure ◽  
High Speed ◽  
Reaction Rate ◽  
First Order ◽  
Gaseous Products ◽  
Retarding Effect

This paper deals with the action of cathode rays on gases and gas mixtures. Methane, methane-oxygen mixtures, carbon monoxide and carbon monoxide-oxygen mixtures were examined. Methane gave small percentages of hydrogen and ethane. Methane and oxygen mixtures gave as gaseous products, carbon monoxide, carbon dioxide and hydrogen, the only other products being water and formic acid. The relative proportions of the products do not vary widely under a wide variation of conditions.The reaction was found to be of the first order with respect to pressure. The reaction rate increases linearly with the voltage up to a certain value, after which it becomes nearly independent of the voltage.The action of cathode rays on carbon monoxide produces carbon dioxide and a solid brown suboxide which is extremely soluble in water, and its composition corresponds to a formula (C3O)n. If the carbon monoxide is moist, no visible amount of solid or liquid is found and there is less carbon dioxide.Carbon monoxide-oxygen mixtures under the action of cathode rays form carbon dioxide. Presence of water vapor has a retarding effect on the reaction. For mixtures of the same composition the reaction rate is proportional to the total pressure. For dry mixtures the product increases with the carbon monoxide present; when moist it is much less, and independent of the carbon monoxide.

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