Ch 302 Exam 3 - 2. relating reaction order to rate Order of...

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Unformatted text preview: 2. relating reaction order to rate Order of a rxn is the sum of the exponents on the concentration terms for a rt. law Order of a rxn b/c it tells us the functional relationship b/w [C] and rt. Order of a rxn determines how amount of a compound speeds/retards a rxn Ex: order of 3 means that the rt. of rxn increases as a cube of the concentration order of -1 means that compound actually retards the rt. of rxn 7. extracting information from straight line plots 10. factors effecting rate 1. Concentration of Reactants (No 0 th order) >division of sample thru ^SA, exposing atoms or gas molecules, the faster the rxn 2. Temperature (dir. Proportional; rt. increases or decreases exponentially) 3. Pre-Exponential Factors/Nature of the Reactant (gases-high A; solids-low A) 4. Activation E a /Presence of a Catalyst (ind. proportional; rt. increases or decreases exponentially) 15. properties and reactivity of hydrogen • Power automobiles, produced when alkali metals are added to water, produced when battery is added to water, and is important in the production of ammonia, and on earth its elemental form is dihydrogen, flammable gas so light that it floats off into space, reacts with everything to form hydrides, produces the most energy per mass of any fuel in the rxn, extract pure metals from ore. • Industrially made through photochemical decomposition of water. 16. properties and reactivity of alkali metals • Has a 1s1 e- configuration, really low ionization energy, behaves like a metal (easily oxidized) to form a mono-cation that are always +1 oxidation state no matter the compound • Really low boiling and melting points and weak bonding • Highly reactice in water and with just about anything • Forms basic hydrides and oxide •...
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This note was uploaded on 12/30/2009 for the course CH 45915 taught by Professor Laude during the Spring '09 term at University of Texas.

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Ch 302 Exam 3 - 2. relating reaction order to rate Order of...

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