Reactions rarely occur by mechanisms that include termolecular elementary steps because ____. Select one: A. the simultaneous collision of three molecules has a low probability B. simpler reaction mechanisms can always support the same rate law C. the math involved is too complicated D. all of the above

Q: 1st order reaction is characterized by:  a. half-life that is inversely proportional to the initial…

A: For a first order reaction: Linear relationship between rate and concentration of reactant. Half…

Q: For a 1st order reaction with a starting concentration of 0.10 M will drop to what concentration…

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Q: The slope of the black dotted line in the figure below is best described as: Time A. The initial…

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Q: Rate constant of reaction is measured in mol/L·s. What is overall order of this reaction? a. zero…

A: Which one of the following is correct

Q: If a reaction is first order in one reactant and first order in the only other reactant, the units…

A: The rate law equation is given as shown below.

Q: Consider the dissolving of sugar as a simple process in which kinetics is important. Suppose that…

A: Equal mass of sugar is dissolved in a fixed volume water. We have to identify which type of sugar…

Q: . A student graphed the natural log of concentration versus time and obtained a straight line. The…

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Q: Consider the reaction profile shown below. Which is the activation energy? a. C b. D c. A d. B

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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: Which of the these factors affect the value of the specific rate for the reaction ? Options O…

A: Specific rate of reaction : This is defined as the rate of the reaction at a particular temperature…

Q: 1A. Effect of Reactant Concentration Test tube# Concentratio Observation Initial time Final time…

A: H2 is a colourless gas. See the solution for answer.

Q: 7. What are the units of k in a second order reaction? A. Ms¹ B. Ms C. M¹¹ D. M²-1 E. S¹

A: Answer:Here, n is the order of reaction

Q: Which of the following reactions wonld have the most reactive two-step unimolecular mechanism(…

A: Given reactions are example of nucleophilic substitution reactions. Unimolecular nucleophilic…

Q: For below reaction where graph of vs t is linear. A B The rate constant for this reaction is 0.790…

A: Given: k=0.790M−1s−1;[A]0​=0.00910M;[A]=???M;t=785s[A]1​vs.tlinearStep 1: Determine the order with…

Q: What is true if a catalyst was added to an endothermic reaction at constant temp? (can be multiple…

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Q: For below reaction where graph of vs t is linear. [A] A B The rate constant for this reaction is…

A: Step 1: Step 2: Step 3: Step 4:

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: If you are given a concentration and time data for a certain reaction, which of the following…

A: We need to describe the best method to determine order of reaction from concentration and time.

Q: a. At higher temperatures, the fraction of molecules with enough energy to overcome the activation…

A: a.) We would check the affect of increasing temperature on energy.  b.) We will check the affect of…

Q: where does the rate constant depend? Select one: a. volume b. temperature c. concentration d.…

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Q: 12. What is the half-life of a 1st order reaction whose rate law constant is 3.7x10-3s-1? a. 190…

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Q: 5. Use the following experimental values: a. Determine the following: i. Rate Law ii. Overall…

A: To determine rate law , we first consider a general rate law with order a and b with respect to…

Q: a.) What are the units of a second-order rate constant? b.) Which is NOT a factor in the calculation…

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Q: In the Arrhenius equation, temperature is directly propotional to which factor? O A. rate constant…

A: The Arrhenius equation is, k=Ae-EaRTwhere, k=rate constant             A=pre-exponrntial factor…

Q: What is the rate reaction of D? The rate expression for the reaction is: rate = k [NO][0₂]. 2NO(g) +…

A: Rate expression is given by the slowest step.  Rate expression should not contain any intermediate…

Q: 1. Differentiate the following terms: a. Rate law b. Rate order

A: The terms "rate law" and "rate order" are related concepts in chemical kinetics, the study of…

Q: 1  It is a mathematical expressions relating the concentration of reactants to the reaction rate ?…

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Q: What is the half-life of a 1st order reaction whose rate law constant is 7.6x10-4s-1? A.…

A: half life = .693/.00076 half life = 910

Q: The _____ of a reaction can be obtained by measuring two concentrations of reactants at times…

A: The rate of a reaction can be defined as the rate of decrease in concentration of reactants or the…

Q: 4) If the activation energy of an endothermic reaction is 40 kJ, the activation energy for the…

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Q: Reaction Rates Reaction rates are measured in units of which is = to

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Q: We are given the concentration of substance A at 15 sec. (0.90 mole/L) and at 45 sec (0.30 mole/L)…

A: Given Concentration at 15s = 0.90 mole/L Concentration at 45s = 0.30 mole/L

Q: 10. Choose the appropriate unit of k (rate constant) for a second-order reaction a. s b. M'.s c.…

A: The question is based on the concept of chemical kinetics. We have to identify the unit of rate…

Q: Find the wrong statement given below: A. Reaction rate increases with the increase in temperature.…

A: 1. Reaction Rate increases with the increase in temperature because the kinetic energy of molecules…

Q: 15. The rate constant for a reaction is 5.65 s¹. What is the overall order of the reaction?! a First…

A: In the question, only the value of the rate constant is given along with the unit. To determine the…

Q: Collision Theory and Rates 1. Describe how the activation energy of a reaction affects the overall…

A: Activation energy is extra energy required to form activated complex.

Q: Which of the following is true: I. First order reactions proceed at a constant rate II. First order…

A: Given- First order reaction.

Q: Answer the following question using the reaction coordinate diagram shown below. 280+ 240+ 200 160+…

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Q: What are the correct units for a second order rate constant? a. mol/Lxs b. 1/s c. L/molxs d.…

A: To choose the correct unit of second order rate constant

Q: As the temperature of a reaction is increased, the rate of the reaction increases because the...? OA…

A: Rate of reaction: The rate at which a chemical reaction proceeds, is called as rate of the reaction.…

Q: Which type of equation allows one to track changes in concentration vs time? a. Rate law b.…

A: We have to determine the type of equation that allows one to track changes in concentration vs time.…