Chem 104 Module 1 Study Guide Review With 93 Correctly Answered Questions Latest Update

Temperature Decreased, Positive Delta H {Ans: Reaction shifts in the reverse direction to produce some heat (+delta H=endothermic (heat absorbing) forward reaction)Ca}Effect of Solvent {Ans: Reactions in solution allow the particles to come in contact with one another more freely causing a higher rate of reaction}Instantaneous Rate Decreases... {Ans: Decreases, as reaction proceeds, concentration of reactant becomes smaller due to consumption of reactants as reaction takes place}Pressure and Volume Relationship {Ans: inversely related}Concentration (at equilibrium) Increased {Ans: Reaction shifts in the direction that consumes some of that added material to re-establish equilibrium}3 Factors Rate Depends On (Collision Theory) {Ans: Depends on how often particles collide, how many of these collisions have the proper alignment, how many of these collisions have energy greater than required activation energy}Given half life, use to find K, find T {Ans: 0.693 = k t 1/2}Pressure (at equilibrium) Decreased {Ans: Reactions shifts in the direction that increases the pressure by going toward the side with the greater moles of gas}First Order {Ans: Rate is directly proportional to the concentration of one of the reactants}Homogeneous Equilibria {Ans: All reactants and products are present in a single phase}Active