True or false  1. a catalyst will lower the activation energy * 2. a catalyst changes the reaction mechanism so that the transition state is lower energy 3. a catalyst increases the forward rate and the reverse rate 4. a catalyst changes the Keq

Q: Roole of Értergy in Roeactionts In order for a reaction to begin, energy is needed to form an…

A: Transition state (activated complex):The transition state of a chemical reaction is a particular…

Q: Will the rate of reaction increase or decrease when 1. temperature is increased 2. using a…

A: The rate of reaction of any reaction is the speed of that reaction. The rate of reaction is measured…

Q: Consider the following two energy diagrams: Energy T Reactants According to the information…

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Q: How does a change in temperature generally affect the rate of a reaction?

A: By altering the kinetic energy of the reactant molecules, a temperature change typically has an…

Q: True or False: A catalyst will always speed up a reaction. A catalyst will always provide an…

A: The objective of the question is to verify the statements about the role of a catalyst in a chemical…

Q: A Free Energy (kcal/mol)

A: Free enrgy of a system can be defined as the available form of energy that can be used to work.…

Q: From the given picture 1.) Define endothermic reaction and exothermic reaction 2.) Differentiate…

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Q: An energy barrier that must be overcome before a chemical reaction can proceed is known as 1.…

A: Activation energy: When the reactant molecules convert into products, they required the minimum…

Q: A В Products Reactants AH AH Reactants Products Reaction Progress - Reaction Progress- Potential…

A: Graph of endothermic reaction and purpose of catalyst

Q: Free Energy (kcal/mol) 25 20 15 10 5 0 A M B Reaction progress Use the reaction energy diagram above…

A: Activation energy is the minimum amount of energy that must be provided for compounds to result in a…

Q: certain one-step reaction has an activation energy that is higher for the forward reaction compared…

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Q: As the temperature of a reaction is increased, the rate of the reaction increases because the The…

A: A chemical reaction happens when reactant molecule gets collide with each other or we can say…

Q: When a catalyst is added to a chemical system involving a reversible reaction, the catalyst…

A: Reversible reaction: It is a reaction which can proceed in both forward and reverse direction.A…

Q: Determine whether the following statement about reaction rates is true or false. If the statement is…

A: Activation energy is energy required by reactant molecule to participate in a chemical reaction to…

Q: Activation energy is a barrier that the reactants must cross to be converted into: O products O…

A: Activation energy is a Barrier that the reactant must cross to be converted into :

Q: When you heat up the reactants, a reaction usually speeds up. Why? * O Collisions occur more…

A: Chemical kinetics involves study of speed of a chemical reaction. Some of the important factors that…

Q: How would the reaction rate change if you heat a reaction up? The reaction rate will increase Not…

A: Using concept of Arrhenius equation A= ke-Ea/RT

Q: d What are the differences between the two diagrams? Curve A Curve B Reaction progress Reaction…

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Q: State two reasons why increasing temperature increases reaction rate.

A: Increasing temperature increases the reaction rate. Two reasons for the above statement have to be…

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: How a reaction's rate changes with concentration ?

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Q: How do catalysts in the body speed up reactions? Decreasing the amount of products formed Increasing…

A: Ans is C

Q: 4) Which of the following statements is true of a catalyst? A) Its concentration stays constant…

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

Q: if a catalyst changes the activation energy of a reversible reaction in the forward direction from…

A: Activation energy is the minimum energy required by the reactants so that they can overcome the…

Q: In 1 to 2 sentences, explain how catalysts increase the rate of reaction.

A: Chemical kinetics is branch of chemistry that deals with rates of chemical reactions.

Q: Which is true about catalyzed reactions? O The net concentration of catalyst does not change O…

A: Given,       Some characteristics of Catalyzed reaction are provided     Required,…

Q: What can be done to lower the activation energy?   Question 6 options:   increasing the…

A: "Catalysts " can lower the activation energy and increase the reaction rate without being consumed…

Q: What the transition state is when there are two reactants?

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Q: Consider a hypothetical chemical reaction: A+B C+D (In this equation A, B, C and D stand for some…

A: The given hypothetical reaction : A + B → C + D

Q: The following figure represents chemical reaction before and after using a catalyst and from the…

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Q: What is the heat of reaction? Is the reaction exothermic or endothermic? Are the reactants (A + B)…

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Q: How do temperature, concentration, and catalysts affect the rate of a reaction?

A: All of them have different impact on rate of reaction.

Q: A catalyst provides an alternate pathway for a reaction to occur. The alternate pathway has a lower…

A: The stoichiometry of the reaction does not change because when a catalyst is present in the reaction…

Q: Which of the following will not affect the reaction rate of a reaction? Increasing the surface area…

A: The rate of a reaction depends upon the following factors

Q: How does increasing temperature affect the rate of reaction? * the activation energy increases so…

A: The rate of a reaction describes the change in the concentration of the reactant and product with…

Q: Which had the highest energy-the reactants the products or the activated complex?

A: Activated complex are highly unstable. In a reaction reactants pass through an activated complex…

Q: Free Energy (kcal/mol) 25 20 15 10 B 5 A с 0 Reaction progress Use the reaction energy diagram above…

A: ∆G° and activation energies can be calculated from the reactants, products and transition state…

Q: Free Energy (kcal/mol) 25 20 15 10 5 0 A B A Reaction progress Use the reaction energy diagram above…

A: Activation energy is the energy required by reactants to reach the activation energy barrier. It is…

Q: X 20. Which one of the following will 0/1 make a reaction go slower? * Add more of the reactants Use…

A: Answer

Q: A chemical species that is not consumed during a chemical reaction and increases the rate of the…

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Q: What do you call the high-energy complex that forms from the collision of reactants, and which…

A: Reactant particles collide with each other and a high energy complex formed first of all. ->This…