CHEM 104 MODULE 1 STUDY GUIDE REVIEW
WITH 93 CORRECTLY ANSWERED QUESTIONS
LATEST UPDATE
1). Kinetics
Ans: the study of rates of reactions and how they are influenced by certain factors
2). Influences reactions rates
Ans: Concentration, temperature, catalysts, surface area
3). Temperature/reaction rate
Ans: Increase, higher temperature provides higher kinetic energy
4). Catalyst/reaction rate
Ans: Increase, without being consumed
5). Surface area/reaction rate
Ans: Increase, increased surface area of particles increases reaction rate because
solids only react at their surfaces (grinding solid into fine powder)
6). Concentration/reaction rate
Ans: Increase, provides more reacting particles to undergo reaction
7). Reaction rate
Ans: Increase in molar concentration of product per unit of time or the decrease in
molar concentration per unit of time
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, 8). Reaction rate units
Ans: moles per liter per second (mol/L*s)
9). Reaction rate equation
Ans: Change in concentration/change in time
(products=positive, reactants=add negative sign)
10). Average rate
Ans: Determined by using initial and final concentrations and initial and final times so
that the result measures the rate over the entire reaction
11). Instantaneous rate
Ans: The change in concentration of reactants (or products) divided by a very short
period of time
12). Instantaneous rate decreases...
Ans: Decreases, as reaction proceeds, concentration of reactant becomes smaller due
to consumption of reactants as reaction takes place
13). Early instantaneous rate
Ans: The change in concentration of reactants (or products) divided by a very short
period of time near the beginning of the reaction
14). Late instantaneous rate
Ans: The change in concentration of reactants (or products) divided by a very short
period of time at the end of the reaction
15). Relative values of average rate, early instantaneous rate, and late instantaneous rate
Ans: The early instantaneous rate will be greater (most reactant) than the late
instantaneous rate or the average rate. The late instantaneous rate will be smaller (less
reactant) than the early instantaneous rate or the average rate.
16). Rate law
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