On an energy diagram of a reaction, the change in enthalpy (ΔH) of a reaction is the difference in energy between __________.     the reactants and the products     the reactants and the transition state     the products and the transition state     none of these, it is equal to the activation energy

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: A catalyst: a. Actually participates in the reaction

A: Catalysis is that which participates in the chemical reaction but after the reaction, we get it in…

Q: ising the temperature b. Adding a catalyst c. Increasing the concentration of the reactants d.…

A: Chemical kinetics deals with the changes in the rates of the reaction with changes in the other…

Q: Which of the following statements is true about the effect of a catalyst on a chemical reaction? A:…

A: A catalyst increases the rate of a chemical reaction by decreasing the activation energy.

Q: Why does the rate of the reaction slow down with time?   The rate constant slows with time because…

A: We need to explain why the rate of reaction  becomes less with time.

Q: . Consider the reaction coordinate diagram shown below. The activation energy for the forward…

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Q: 1. Which of the following statements is false considering the reaction below? 2NO(g) + 2H2 (g) 2N2…

A: Chemical kinetics is branch of chemistry in which we deal with the speed at which rate of reaction…

Q: 1. a) Write the reaction profile (reaction coordinate diagram) for an endothermic reaction that…

A: When in a reaction reactants are converted into products, energy change takes place. Representation…

Q: True or false  1. a catalyst will lower the activation energy * 2. a catalyst changes the reaction…

A: Catalyst is a chemical compound which has tendency to alter (increase or decrease) the rate of…

Q: Using an energy diagram of a chemical reaction determine what are the reactants, products, enthalpy…

A: Define term : Reactant: A substance that takes part in and undergoes change during a reaction.…

Q: 1. 109. Which of these will NOT increase the rate of a chemical reaction? 1. Increasing the surface…

A: The questions are based on the concept of chemical kinetics. we need to determine the factors on…

Q: . Which letter represents the activation energy for the reaction? 2. Which letter represents the…

A: Activation energy is defined as the energy barrier required to complete the reaction. Let us discuss…

Q: 1. What is an exothermic reaction? Draw an energy diagram that illustrates an exothermic reaction.…

A: Since you have asked multiple unrelated questions, we will solve the first question for you. If you…

Q: The rates of which reactions are increased when the temperature is= raised? I. Endothermic reactions…

A: We need to compare the change in rate of reaction due to increase in temperature in exothermic and…

Q: In an exothermic reaction,   Multiple Choice (select one)   a. the activation energy will change…

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Q: Explain, using Collison theory, one factor effecting the rate of a reaction. Draw a potential energy…

A: According to the collision theory of reactivity, reactions occur when reactant molecules…

Q: Select all of the correct statements about reaction rates from the choices below. The lower the…

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Q: Use the following information to draw an energy diagram. 1. Label the potential energy in increments…

A: Answer:- This question is answered by using the simple concept of drawing the energy diagram of a…

Q: Draw the energy diagram and label the reactant, product, transition state, enthalpy change, and the…

A: Starting material is considered to be the reactants. The energy diagram begins with the reactants at…

Q: If the reaction below takes place inside a sealed reaction chamber, then which of these procedures…

A: Given, reaction equation: 2CO + O2 ----> 2CO2 We need to decrease in the rate of reaction.  We…

Q: What does a catalyst do? Decrease the activation energy Catalysts are used instead of the regular…

A: catalyst decreses the activation energy. When it decreses the activation energy, the rate of…

Q: The activation energy for a reaction is the energy difference between what two components of a…

A: The activation energy for a reaction is the energy difference between what two components of a…

Q: The diagram shows the potential energy changes for a reaction pathway. Reaction Pathway Part 1:…

A: From the diagram  ∆H(change in the enthalpy)=Heat content of the products-Heat content of the…

Q: 15. name one factor that can increase the success of reactant collisions. explain how it increases…

A: The one factor is Temperature. An increase in temperature typically increases the rate of reaction.…

Q: 1. The following graph illustrates the distribution of kinetic energy of molecules at a certain…

A: A catalyst is a material or a substance which helps in the alteration of reaction rate. It may…

Q: Which of the following conditions will decrease the rate of a reaction? a decrease in…

A: The rate of reaction increases with increase of temperature because of increase of number of…

Q: During a chemical reaction the temperature drops from 26 oC to 14 oC. What can you conclude about…

A: When temperature dropped from high temperature to lower temperature is indicates that releasing of…

Q: The diagram shows the energy change over the course of a reaction. 150 100 Is the reaction…

A: The energy difference of the products and reactants is known as the energy change of a reaction.  If…

Q: estic In an endothermic reaction, the collision energy of the reactants will be greater than that of…

A: A reaction can be either exothermic or endothermic.  An exothermic reaction is a chemical process…

Q: The two reactions shown below involve an acid chloride. For each reaction, draw the organic product…

A: The two reactions given are :

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: In general as a reaction proceeds, what happens to the rate of the reaction? Select one: a.…

A: The reaction rate or rate of reaction is the speed at which a chemical reaction takes place. And…

Q: Which definition best describes the term activation energy? the energy a compound possesses by…

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Q: What is the activation energy of a reaction? Draw the energy diagram for the reaction:  A → B and…

A: Activation energy, in chemistry, the minimum amount of energy that is required to activate atoms or…

Q: 4. Two chemical reactions are represented below. The potential energy diagram is shown below for…

A: Activation energy is the minimum energy required which is more than the average kinetic energy of…

Q: Catalysts increase reaction rates by _____ A) increasing the activation energy. B) increasing the…

A: According  to Arehenius equation  K= Ae-Ea/RT

Q: Which of the following statements is false. Catalysts make a reaction rate go faster by providing a…

A: A reaction will proceed in the forward direction if its reactant crosses the minimum energy…

Q: Select all of the correct statements about reaction rates from the choices below. The lower the…

A: Several statements are given here about the kinetics of a reaction.  Using the basic concepts of…

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: Consider this reaction diagrams where R is reactants and Pis products. R Reaction progress What…

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Q: bonds to be broken. The activation energy, Ea, of the forward reaction is the difference between the…

A: Statements 1,3,5,6,7 are coorect Activation energy is the minimum energy which is required to to…

Q: 2 Define "activation energy" b What is the role of a catalyst in chemical reactions? Draw an energy…

A: 2(a) The minimum energy that must be provided to the compounds in a chemical reaction in order to…

Q: Determine whether the following aspects of a reaction are increased, decreased, or unaffected by the…

A: Given : Addition of catalyst.

Q: Reaction coordinate diagrams: Two-step diagram. Label the reactant (R), product (P), intermediate…

A: An energy profile diagram helps us to understand the reaction completely.

Q: True or False  _____ The kinetics of reaction deals with the energies of the products and the…

A: _False____ The kinetics of reaction deals with the energies of the products and the reactants.…

Q: X 22. Which of the following 0/1 statements are correct? * An increase in temperature makes…

A: The change in concentration of the reactants or products in unit time is known as the rate of…

Q: Select all of the correct statements about reaction rates from the choices below. The lower the…

A: 1) The lower the rate of a reaction the longer it takes to reach completion. Since rate is basically…

Q: What does a catalyst do to speed the reaction rate? It increases the concentration of the reactants.…

A: The best option that describes the role of catalyst in speeding up the rate of reaction has to be…

Q: 9. What effect does a catalyst have on a reaction? A. It changes the AH of a reaction. B. It…

A: Catalyst is the substance that form reactant-Catalyst complex and follow a different  pathway from…