A catalyst increases the rate of a reaction by Group of answer choices increasing the concentration of the reactants. increasing the activation energy of the reaction. changing the mechanism of the reaction. decreasing the enthalpy change of the reaction.

Q: Explain the four basic types of chemical reactions Be sure to include a sample equation for each…

A: Four type of chemical reactions are :-  1. synthesis reactions 2. decomposition reactions 3. single…

Q: Which of the following is NOT a method of determining the reaction order? Initial rate method…

A: A multiple choice question based on kinetics that is to be accomplished.

Q: Match each description to the most appropriate category. Heterogeneous catalysts Homogeneous…

A: A chemical reaction that occurs in presence of a catalyst is called catalysis. Catalysis reactions…

Q: A reversible reaction that occurs in a single step has ΔH = -17.8  kJ/mol and Ea = 37.7  kJ/mol.…

A: Chemical kinetics is the branch of chemistry that mainly deals with the rate of reaction and change…

Q: Consider the following potential energy diagram: Reaction coordinate Which path represents a…

A: Which path represents a catalyzed reaction ? Blue path reaction There are three step present in the…

Q: A catalyst increases the rate of a reaction by: increasing the temperature. В) A) decreasing the…

A: Catalyst :-  A substance which when added in small amount to the reaction mixture , increases rate…

Q: grade 12 chemistry: How would you explain the concept of activation energy to someone who has only…

A:

Q: Indicate whether each statement is true or false. (a) If you compare two reactions with similar…

A: The relationship between rate constant and activation energy is given by  K = A e-Ea / RT  where K =…

Q: Is each of these statements true? If not, explain why.(a) At a given T, all molecules have the same…

A: (a) At a given T, all molecules have the same kinetic energy. The given statement about the kinetic…

Q: 1. What is referred to as the change A.) Chemical reaction 2. What is the proportionality constant…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: The graph below is a potential energy diagram for the hypothetical reaction: + B → C + D 100 90 80…

A: ->∆H = H(product)-H(reactant) If ∆H>0 => Endothermic If ∆H<0 => Exothermic ->An…

Q: performed on a chemical reaction will lower it's activation energy? i) increasing the concentration…

A: Activation energy is the minimum amount of energy needed by the molecules to complete /happen a…

Q: 7.) An increase in the temperature of the reactants causes an increase in the rate of reaction.…

A: Rate of reaction is inversely proportional to activation Energy.

Q: Choose the correct answer The rate-determining step in heterogeneous catalysis is: Group of answer…

A: Answer - The correct option is c.the "slowest" step According to the question - Given - In chemical…

Q: Which statement could NOT be a possible explanation for the increase in effective collisions caused…

A: A catalyst helps in the faster formation of products by increasing the rate of reaction without…

Q: Which change does not increase the value of the rate constant for a reaction? (A) decreasing the…

A: The relationship rate constant of any reaction is given by  where K = rate constant  A = frequency…

Q: How having a higher potential energy for the reactant affects the activation energy, all other…

A: Explained as follows

Q: 29.What does adding a catalyst to a reaction do?  Select two that apply.   increase the rate of…

A: A catalyst is a substance which alters the rate of reaction without being consumed in the chemical…

Q: A catalyst can increase the rate of a reaction by (choose all) a. By providing an alternative…

A: By using catalytic action diagram energy vs reaction coordinate.

Q: The change in temperature from 10 °C to 20 °C is found to double the rate of a particular chemical…

A: Rate of reaction depends on temperature . temperature increase rate of reaction also increase.

Q: Suppose that the reaction A ⟶ products is exothermic and has an activation barrier of 75 kJ/mol.…

A: It is given that the reaction A ⟶ products is an exothermic reaction and has activation barrier of…

Q: Use the following information to determine the activation energy for the reaction shown here:…

A:

Q: Which of the following is/are TRUE regarding the half-life of any reaction? Group of answer choices…

A: Introduction :  The half life of a reaction can be defined as the time during which the…

Q: A) The enzyme urease catalyzes the hydrolysis of urea to ammonia and carbon dioxide. The uncatalyzed…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: . The Activation Energy can best be described as :   Group of answer choices a) The amount of…

A: In this question, we will discuss about Activation energy and then Select the correct answer.  You…

Q: Draw a reaction profile (the graph of energy as a function of time as a reaction progresses) for the…

A:

Q: How is the rate of concentration expressed in terms of the concentration of the reactants of…

A: Rate is basically the speed with which the reaction is taking place i.e. how much the reaction is…

Q: A reversible reaction that occurs in a single step has AH= -26.2 kJ/mol and E = 25.2 kJ/mol. What is…

A: The relationship between the enthalpy change ∆H and activation energy is: ∆H=Eaf-Eab·······(1) Here,…

Q: c) Transition elements exhibit many chemical properties including acting as catalysts. Explain…

A: Given :  We have to discuss the property why transition metal act as heterogenous and homogenous…

Q: Which of the following statements is correct? a) For an endothermic reaction, the activation energy…

A: Which of the following statement is true:

Q: Chemical reactions occur when reactants collide. What are two factors that may prevent a collision…

A:

Q: 9. An increase in temperature increases the reaction rate. What is the best reason to explain this…

A: Applying statement of kinetic theory Ek= 3/2kT

Q: Activation energy of uncatalyzed reaction and the catalyzed reaction A. If the first quantity is…

A:

Q: 3. Which of the following is NOT TRUE about a catalyst? A) It lowers the activation energy of the…

A: The catalyst is a chemical species that increases the rate of a chemical reaction and it does not…

Q: Which factor is most sensitive to changes in temperature—the frequency of collisions, the…

A: The  factor which is most sensitive to changes in temperature has to be given,

Q: Which of the following changes always leads to an increase inthe rate constant for a reaction:(i)…

A: The Arrhenius equation to calculate the rate constant (k) is shown below.

Q: An increase in temperature will Group of answer choices decrease the rate of a reaction. decrease…

A: Given : Increase in the temperature of reaction.

Q: Catalysts function by decreasing the required to form the transition state: Activation energy (A)…

A:

Q: catalyst speeds up a chemical reaction by lowering the reaction’s activation energy. Explain why/how…

A: The activation energy and the rate of reaction are inversly proportional. And catalalyst plays a…

Q: Which of the following statements is  true?     A catalyst raises the activation energy of a…

A: The catalyst is a chemical species that increases the rate of a chemical reaction and it does not…

Q: Which one of the following statements is False?     The rate constant depends on the activation…

A: Rate constant, in chemical kinetics define the rate of reaction of a chemical reaction. The factors…

Q: Which of the following are ways that catalysts can speed up reactions rates? You must check all…

A: A catalyst is a chemical substance that can be added to a reaction, without being absorbed in the…

Q: Lowering the activation energy of a reaction will increase the rate of the reaction by:   Group of…

A: Activation energy is the minimum energy needed by reactant molecules to convert in to products.

Q: Which of the following statements are true? I. Activation energy of a reaction is smaller at higher…

A: Activation energy  It is defined as the minimum energy required by the reactants so that they can…

Q: It is generally believed that catalysts increase reaction rates by:    Question 6 options:…

A:

Q: Which of the following is true?   Decreasing the activation energy decreases the reaction rate.…

A: The minimum amount of energy required by the reactant molecules to convert into the products is…

Q: 51. The major reason an increase in temperature causes an increase in reaction rate is that (A) the…

A: An increase in temperature typically increase the rate of reaction .The increase in temperature will…

Q: Which of the following statements is false? Lowering the activation energy increases the rate of a…

A: We know that: Activation energy is the minimum amount of energy that is required to activate atoms…