Sample Designs: Test one group against another group of experiment on the same reaction time test Compare the reaction times of the same people under two different conditions, lke after exercise A test subject attempts to grab the ruler as it is dropped, the number on the ruler where the fingers grasp it can be used to judge reaction time Digital reaction time tests are easy to find with a google search You can also install an app on your phone that can measure reaction time (useful if you want to test subjects outside of class) C) How will you gather data? Will you take averages?

Sample Designs: Test one group against another group of experiment on the same reaction time test Compare the reaction times of the same people under two different conditions, lke after exercise A test subject attempts to grab the ruler as it is dropped, the number on the ruler where the fingers grasp it can be used to judge reaction time Digital reaction time tests are easy to find with a google search You can also install an app on your phone that can measure reaction time (useful if you want to test subjects outside of class) C) How will you gather data? Will you take averages?

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 9CR

See similar textbooks

Similar questions

Chemical reactions occur when reactants collide. What are two factors that may prevent a collision from producing a chemical reaction?
Many conditions need to be met to produce a chemical reaction between molecules. What if all collisions between molecules resulted in a chemical reaction? How would life be different?
use the kineticmolecular theory to explain why an increase in temperature increases reaction rate.
Apply collision theory to explain why increasing the concentration of a reactant usually increases the reaction rate.
Substances that poison a catalyst pose a major concern for many engineering designs, including those for catalytic converters. One design option is to add materials that react with potential poisons before they reach the catalyst. Among the commonly encountered catalyst poisons are silicon and phosphorus, which typically form phosphate or silicate ions in the oxidizing environment of an engine. Group 2 elements are added to the catalyst to react with these contaminants before they reach the working portion of the catalytic converter. If estimates show that a catalytic converter will be exposed to 625 g of silicon during its lifetime, what mass of beryllium would need to be included in the design?
Apply collision theory to explain why powdered zinc reacts to form hydrogen gas faster than large pieces of zinc when both are placed in hydrochloric acid solution.
. Account for the increase in reaction rate brought about by a catalyst.
Go to the PhET Reactions and change to Angled shot to see the difference. (a) What happens when the angle of the collision is changed? (b) Explain how this is relevant to rate of reaction.
Classify each of the following statements as true or false. aSome equilibria depend on a steady supply of a reactant in order to maintain the equilibrium. bBoth forward and reverse reactions continue after equilibrium is reached. cEvery time reactant molecules collide, there is a reaction. dPotential energy during a collision is greater than potential energy before or after the collision. eThe properties of a transition state are between those of the reactants and products. fActivation energy is positive for both the forward and reverse reactions. gKinetic energy is changed to potential energy during a collision. hAn increase in temperature speeds the forward reaction but slows the reverse reaction. iA catalyst changes the steps by which a reaction is completed. jAn increase in concentration of a substance on the right-hand side of an equation speeds the reverse reaction rate. kAn increase in the concentration of a substance in an equilibrium increases the reaction rate in which the substance is a product. lReducing the volume of a gaseous equilibrium shifts the equilibrium in the direction of fewer gaseous molecules. mRaising temperature results in a shift in the forward direction of an endothermic equilibrium. nThe value of an equilibrium constant depends on temperature. oA large K indicates that an equilibrium is favored in the reverse direction.
. How does the collision model account for the fact that a react ion proceeds faster when the concentrations of the reactants are increased?
Consider the following activation energy diagram. Which of the following statements about the diagram are true? (a) E a(forward)E a(reverse)(b) B represents the activation energy of the forward reaction. (c) Energy (H)for the reaction is AC. (d) E a(forward)=BA(e) E a(forward)=E a(reverse)C
How do chemists envision reactions taking place in terms of the collision model for reactions? Give an example of a simple reaction and how you might envision the reaction’s taking place by means of a collision between the molecules.