6.3Rate Laws and Orders.doc - 6.3 Rate Laws and Order of...

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6.3 Rate Laws and Order of Reaction The Rate Law – the rate (r) will always be proportional to the product of the initial concentrations of the reactants, where these concentrations are raised to some exponential values, this can be expressed as r is proportional [X]^m[Y]^n m & n are exponents that describe the relationship between the rate and the initial concentrations Rate Law Equation Where k is the rate constant – determined through experimental testing Order of reaction – the exponent value that describes the initial concentration dependence of a particular reactant If exponent = 0 then changing the concentration will not affect the rate of reaction Exp= 1, reaction will double if concentration is doubled

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