Portage Chem 104 Module 1 Study Guide A+ 2024

Kinetics -Correct Answers the study of rates of reactions and how they are influenced by certain factors Influences Reactions Rates -Correct Answers Concentration, temperature, catalysts, surface area Temperature/Reaction Rate -Correct Answers Increase, higher temperature provides higher kinetic energy Catalyst/Reaction Rate -Correct Answers Increase, without being consumed Surface Area/Reaction Rate -Correct Answers Increase, increased surface area of particles increases reaction rate because solids only react at their surfaces (grinding solid into fine powder) Concentration/Reaction Rate -Correct Answers Increase, provides more reacting particles to undergo reaction Reaction Rate -Correct Answers Increase in molar concentration of product per unit of time or the decrease in molar concentration per unit of time Reaction Rate Units -Correct Answers moles per liter per second (mol/L*s) Reaction Rate Equation -Correct Answers Change in concentration/change in time (products=positive, reactants=add negative sign) Average Rate -Correct Answers Determined by using initial and final concentrations and initial and final times so that the result measures the rate over the entire reaction Instantaneous Rate -Correct Answers The change in concentration of reactants (or products) divided by a very short period of time Instantaneous Rate Decreases... -Correct Answers Decreases, as reaction proceeds, concentration of reactant becomes smaller due to consumption of reactants as reaction takes place Early Instantaneous Rate -Correct Answers The change in concentration of reactants (or products) divided by a very short period of time near the beginning of the reaction Late Instantaneous Rate -Correct Answers The change in concentration of reactants (or products) divided by a very short period of time at the end of the reaction