Rate of Reactions Rate of a Reaction change in concentration of a component interval of time CHM LECTURE NOTES 13 2 H2 I2 2HI Rate H2 t H2 H2 f H2 i and t change in time Rate I2 t the negative sign in this one is because the concentration of I2 decreases with time Rate HI t the is because you multiply the rate by the reciprocal of the stoichiometric coefficient of the reaction component Average rate of a reaction plug in values for the change in concentration final initial time final initial into the rate equation same as above Instantaneous rate of reaction rate at a particular moment in time On a graph the slope of the tangent will give you the instantaneous rate of reaction
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