What is the function of a catalyst? Increases the temperature of the reaction Increases the concentration of the reactants It lowers the activation energy for both the forward and reverse reaction It removes product from the reaction All of the above are functions of a catalyst

What is the function of a catalyst? Increases the temperature of the reaction Increases the concentration of the reactants It lowers the activation energy for both the forward and reverse reaction It removes product from the reaction All of the above are functions of a catalyst

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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⦁ 4. Make your own energy diagram for an exothermic reaction that does not include a catalyst and one with a catalyst (Be sure each line is a different color or labeled). Label the axis of the diagram. Then, state what a catalyst is and how a catalyst affects the reaction rate.
When a system is a dynamic equilibrium, A no reactions are occurring B a reaction is occurring in only one direction C the rates of the forward and reverse reactions are equal D all of the reactants have been converted to products
Chemical or physical processes that can proceed in both the forward and reverse directions are called reversible processes redox processes O combustion processes equilibrium processes Next • Previous
How do you label an energy diagram of a chemical reaction? What is a catalyst and how does it increase chemical reaction rates?
Which among the following is needed by reacting molecules to overcome in order for products to be formed? Choose from the choices below: Kinetic energy Potential energy Activation energy Heats of reaction mixture
At chemical equilibrium, what is true about the forward rate and reverse rate? The forward rate is greater than the reverse rate The forward rate is less than the reverse rate The forward rate is changing faster than the reverse rate The forward rate is the same as the reverse rate
2. A catalyst is a substance that increases the rate of a chemical reaction but is not consumed by the reaction. A catalyst works by lowering the activation energy for a reaction, making it easier for reactants to form products. What effect, if any, would a catalyst have on a system already at equilibrium? Briefly explain.
Restate the collision theory in your own words. Apply the concepts of collision theory to determine if the rate of reaction between zinc metal and hydrochloric acid will either increase or decrease under the following conditions: Decreasing the temperature of the hydrochloric acid Increasing the concentration of the hydrochloric acid Adding a catalyst to the reaction
A reaction begins with a solution containing reactants but no products. When the reaction reaches equilibruim a) The enthalpies of the reactants and products are equal b) The concentrations of the reactants and products are equal c) The equilibrium constant has decreased relative to its value at the start of the reaction d) The forward and reverse rate constants are equal e) None of the above
Indicate whether the equilibrium will shift RIGHT (products), LEFT (reactants), or NOT AT ALL for the following reactions when the given stress is applied. Zn(s) + 2HCI(I) ⇒ ZnCl₂(s) + H₂(g) + Heat (EXO) Adding Zn Adding HCI Adding ZnCl2 Adding H2 Removing H2 Removing Zn Increasing Temp Decreasing Temp Increasing Pressure Decreasing Pressure