'Arrhenius equation' presentation slideshows

Chemical Kinetics

Chemical Kinetics. Reaction Rates 01. Reaction Rate: The change in the concentration of a reactant or a product with time (M/s). Reactant ? Products aA ? bB. Reaction Rates 02.

962 views • 42 slides

Production of radioactive molecular beams

Production of radioactive molecular beams. Christoph Seiffert CERN-ISOLDE TU Darmstadt Supported by the Wolfgang Gentner programme. CERN/ISOLDE. https://mediastream.cern.ch/MediaArchive/Photo/Public/2008/0812015/0812015/0812015-A4-at-144-dpi.jpg. The Nuclear Chart.

467 views • 32 slides

Chapter 14

Chapter 14. Integrated Rate Laws. First-Order: ln(c t /c 0 ) = -kt Second-Order: (1/c t ) - (1/c 0 ) = +kt. Arrhenius Equation. Activation energy measured by comparing rates at different temperatures k = Ae -Ea/RT k 2 /k 1 = (Ae -Ea/RT 2 )/(Ae -Ea/RT 1 ) = e -Ea/RT 2 -(-Ea/RT 1 )

248 views • 24 slides

temperature-dependence of reaction rate -- Arrhenius equation

temperature-dependence of reaction rate -- Arrhenius equation. k. T. From the middle of 19 century, people began to study the effect of temperature on the reaction rate. Many empirical relations have been founded. 1 Types of rate-temperature curves. Type I:

1.03k views • 23 slides

Rate Expression

Rate Expression. The rate expression is an equation Determined experimentally Shows dependence of rate on concentrations of reactants Rate is found whilst changing concentration of a reactant. Rate Expression. Order of Reaction. Experimental Data. Experimental Data.

386 views • 22 slides

Chapter 13

Chapter 13. Kinetics. Overview. Rates of Chemical Reaction Pathways or Mechanisms of Reaction. Factors affecting Rate. [Reactants] recall, [ molarity] Temp. Surface Area Catalyst define catalyst vs inhibitor. Rate, defined. A ? C ? [A] / sec

317 views • 19 slides

414 views • 17 slides

Rate laws (2)

Rate laws (2). Lec 3 Week 4 . Non elementary Rate Laws. A large number of both homogeneous and heterogeneous reactions do not follow simple rate laws. Examples of Homogeneous Reactions CO +Cl 2 COCl 2

1.11k views • 15 slides

The Collision Model

The Collision Model. The reaction rate depends on: collision frequency a probability or orientation factor activation energy (E a ) The reaction rate increases as the number of collisions between reacting species increase. Concentration temperature. Cl. Cl. Cl. Br. Br. Br. H. H. H.

321 views • 15 slides

Question of the Day:

238 views • 13 slides

Temperature and Reaction Rate

Temperature and Reaction Rate. General Chemistry 101/102 Laboratory Manual University of North Carolina at Wilmington. Safety Considerations. Wash your hands thoroughly after handling chemical reagents and before leaving the lab.

242 views • 8 slides

The Arrhenius Equation

The Arrhenius Equation. Collision Theory: A bimolecular reaction occurs when two correctly oriented molecules collide with sufficient energy. Activation Energy ( E a ): The potential energy barrier that must be surmounted before reactants can be converted to products. The Arrhenius Equation.

1.45k views • 7 slides

Natural Clocks: Cricket Chirps

218 views • 7 slides

Click + to expand, then to select options.

Supply an equation, BASIC script or script file, or a C/C++ function to describe how transient field variables vary in space and time. Click + to expand, then to select options. Field variables by default hold steady throughout a run. Check to evaluate at each time step.

180 views • 7 slides

Cathodic Current, i c Anodic Current, i a

Kinetics of Electron Transfer at the Solid Electrode-Solution Interface. Cathodic Current, i c Anodic Current, i a. The rate of consumption/production of a species at an electrode of area A (cm 2 ) is:. Both in units of mol cm -2 s -1 and so k in units of cm s -1.

293 views • 6 slides

Gliderpalooza 2013: So much more than gliders

Gliderpalooza 2013: So much more than gliders. Oscar Schofield Professor Bio-Optical Oceanography Rutgers University. Gliderpalooza Partners & Funders. Deployments. A true grass-roots effort: 14 gliders, 14 partners, 2.5 months, 17 deployments.

207 views • 5 slides

The Arrhenius equation

116 views • 5 slides