CHM 102 Lecture Notes - Lecture 1: Chemical Kinetics, Reaction Rate, Standard Deviation
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Standard deviation how wide of a spread the information is. Sd is better when data is closer instead of spread apart. How fast a reaction occurs & the steps that lead to the processes. A + b c + d. 20% o2 vs. 100% o2: the temperature of the reaction, temperature measuring how fast/ often molecules collides with the thermometer; collision rates in the atmosphere. Ex. refrigerators help prevent or slow down spoilage, mold, bacteria to grow on food. Ex. placing lemon juice on apple slices to lower oxidation rate (browning of the apples: catalysts not used up in a chemical reaction; allows a chemical reaction to increase, enzyme is a subset of a catalyst. What is chemical kinetics: the study of the how and how fast a reaction occurs. If anything disappears we must add a negative sign so the negatives cancel out and we are left with a positive value means change in (final - initial)
