Kinetics Review - Andrew Rosen neededSO Kinetics Branch of...

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Mn (s) H 2 SO 4(l) Intermediate mining step and determines the overall rate needed for collisions to occur required to form the activated complex Andrew Rosen Kinetics: Branch of chem dealing with the rates of chemical reactions and the mechanisms in which these reactions occur Thermodynamically Stable: The reaction does not spontaneously decompose at room temperature (+ endothermic) Thermodynamically Unstable: The reaction will proceed spontaneously (- exothermic) Kinetically Stable: Even at room temperature, the spontaneous reaction proceeds so slowly that a change is almost unseen Reversable Reactions: H 2 O (s) H 2 O (l) Factors Affecting Reaction Rate: Rate of disappearance of one of the reactants or rate of appearance of one of the products (mol/ dm 3 ) 1) Nature of the reactants: Ionics react faster – little bond – rearrangement Ex: Double displacement Covalent molecule – slower – more bonds For collision to be effective: Proper orientation/position Enough energy to overcome repulsive forces 2) Concentration: Quantity of matter per unit volume = molesliter = Molarity (M) = [ ] H 2 + I 2 2 HI Rate = k [H 2 ][I 2 ]
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