For an endothermic reaction, which statement is true? Group of answer choices The activation energy for going from reactants-to-products is larger than that for going from products-to-reactants. The activation energy for going from reactants-to-products is less than that for going from products-to-reactants. The activation energy is the same no matter which direction (left-to-right or right-to-left) the reaction is going.. None of the other three statements are true.

Q: Given that a reaction absorbs energy and has an activation energy of 50 kJ/mol, which of the…

A: Given: Reaction absorbs energy and has an activation energy of 50 KJ/mol.

Q: Activation energy for the reaction is 44KJ/mole. A catalyst is added and the reaction rate constant…

A: Given :  Initial Activation energy(Ea1) = 44 KJ/mole  Initial rate constant (K1) = 34L3mole-3s-1…

Q: Which of the following does not affect the rate of a chemical reaction? Group of answer choices A)…

A: The rate of a chemical reaction can be defined as the change in concentration of species with…

Q: Consider the reaction data.   A⟶products ?  (?) ?  (?−1) 225 0.390 525 0.750 What two points…

A: Generally, the conversion of reactants into the products should accompany with the energy barrier.…

Q: fL was lowered by adding a catalyst, which of the following would be correct? 100 90- 80- 70- 60- 50…

A: The addition of catalyst change the activation energy by providing a new path. It changes the energy…

Q: Change in enthalpy for both forward and reverse reaction  A,B,C,D,E Uncatalyzed activation energy…

A: Change in enthalpy is calculated by the difference of energy between reactant and products.…

Q: Experimental data for a reaction are plotted in the graph below. T is in units of Kelvin. The slope…

A: The Arrhenius equation: ln k = ln A –Ea/RT ----------(1) where,  k = rate constant for the reaction…

Q: What is activation energy?  Select one:

A:

Q: For a reaction with reactant energy of 44 kJ and heat of reaction of 46 kJ and product energy of 90.…

A:

Q: Define activation energy. What role does activation energy play in chemical kinetics?

A: The branch of chemistry that deals with the rates of a chemical reaction or we can say that the…

Q: rant to draw the energy diagram) an activation energy greater than 50 kJ/mol. absorb energy. = an…

A: As we know,  For endothermic reaction,  □H > 0

Q: Which of these properties does not apply to a catalyst? a) It reduces the overall activation energy…

A: Answer is option b (It increases the number of collisions).    Catalyst will not increase the number…

Q: If A → B is exothermic, how does the activation energyfor the forward reaction compare with the…

A: Activation energy is the amount of energy needed to convert reactants to products.

Q: The graph shows three reaction pathways for the same biological reaction. One reaction pathway shows…

A: Since when we don't use any catalyst, that reaction will have the highest activation energy. Hence…

Q: All chemical reactions have a set amount of activation energy in order for the reaction to move to…

A: Endothermic :(energy absorbed) products energy > reactants energy Exothermic:(energy released)…

Q: How can the reaction rate for a low pressure gaseous reactant be slow at high temperatures? Group…

A: The rate of reaction helps in the determination of the rate at which the reaction will proceed. The…

Q: What is the activation energy for a reaction if K= 1.89 x 10^-1 s^-1 at 541 kelvin and k= 4.34 s^-1…

A: The two point Arrhenius equation is given by,                        where, k1 and k2 is the rate…

Q: Which of the following statements is true? (Select all that apply.) O Changing the temperature of…

A: 1.) When we increase the temperature the rate of the reaction tends to increase because reactant…

Q: Explain how enzymes increase the reaction rate for processes in cells of living organisms by…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts…

Q: Base your answers to practice questions 43 and 44 on the information below. Given the reaction:…

A:

Q: (a) On the reaction profile below label the transition state(s), intermediate(s) and activation…

A: There are 3 activation energy State Present in the reaction profile

Q: Which of the following is the best way to judge the relative activation energies between two given…

A: In order to find the best suited option we should first analyze all the given options. Delta G is…

Q: Define the terms according to “The effect of concentration on reaction rate” experiment. Activation…

A: We will write about the terms which is given

Q: In the following chemical reaction at a certain temperature, if you know that the potential energy…

A:

Q: Consider the reaction data.   A⟶products ?  (?)T  (K) ?  (?−1)k  (s−1) 325325 0.3930.393 775775…

A: The Arrhenius equation is as follows,                                  ln K = -EaR1T + ln A Given: T…

Q: The activation energy for a given reaction is 125 kJ/mol while ΔH for the reaction is 25 kJ/mol. a.…

A: The expression for the enthalpy change is:…

Q: What factors determine whether a collision between two reactant molecules will result in a reaction?…

A: Collision theory of reaction rate: According to the collision theory of reaction rate, the randomly…

Q: The graph shows the reaction pathways for the same reaction: One reaction pathway shows an…

A: Catalysts are the substances that increase the overall rate of the reaction without being consumed…

Q: Use the diagram below to explain which letter choice would have the fastest reaction rate and why…

A: A multiple choice question based on Collision theory, which is to be accomplished.

Q: Given that a reaction is Exothermic in the foward direction and has a forward activation energy of…

A: Exothermic reaction is the reaction where heat is released in the reaction. Activation energy is the…

Q: Lower temperature affects reaction rate because it decreases: A. The frequency of particle…

A: At a higher temperature particles move faster hence there are likely to be more collisions and…

Q: Describe how the particles of two substances interact when mixed. Be sure to discuss the activation…

A: Chemical kinetics is the study of the rates of chemical reactions or how fast reactions occur. The…

Q: Given that a reaction is Exothermic in the foward direction and has a forward activation energy of…

A:

Q: If L was lowered by adding a catalyst, which of the following would be correct? 70- 60- 50 40- 30-…

A: On adding catalyst, Reaction goes through alternate pathway.

Q: For this elementary process N2O5(g)--> NO2(g)+NO3(g) The activation energy for the forward…

A: The given chemical reaction is: N2O5(g)--> NO2(g)+NO3(g) Activation energy is the minimum amount…

Q: An activated complex (transition state) is: (Choose one) and please explain. A. A substance that…

A: The reaction rate, also known as the rate of reaction, is the rate at which a chemical reaction…

Q: Which of the following chemical kinetic (reaction rates) factors in biological systems results in a…

A: The velocity of the chemical reaction is called as the rate of the reaction. There are several…

Q: Why do reactions generally occur faster at high temperatures based on the collision theory? Choose…

A: Rate of a reaction is defined as the speed with which a chemical reaction proceeds. Rate can be…

Q: Sketch a potential-energy diagram for the reaction of nitric oxide with ozone. The activation energy…

A: First we will draw energy diagram, then calculate activation energy for reverse reaction.

Q: Which of the following collisions will initiate the reaction? The energy of the collision is written…

A: To initiate the reaction by a collision is possible only when the collision energy is equal to or…

Q: Which of the following is NOT a reason why a catalyst can speed up a reaction? a.  Increasing the…

A: Option (b) is the answer.

Q: For the chemical reaction system described by the diagram below, which statement is true? Energy…

A: Activation energy is energy difference between reactant (or) product and energy barrier.

Q: b) The activation energy of a gas reaction is 30 Kcal/mole in the temperature range 0 to 60°C.…

A:

Q: Consider the reaction profile shown in image. The activation energy of the reaction is represented…

A: Given : Graph of energy versus Progress of a reaction To find : Activation energy

Q: Crushing a solid into a powder will increase the reaction rate because ________.  A. the particles…

A: The rate of reaction is the speed at which the chemical reaction would take place.

Q: Which statement is NOT correct?   A. Activation energy is the same in the forward and reverse…

A: To identify: The incorrect statement from the given options.