Which of the following is TRUE? O In relaxation methods of kinetic analysis, the equilibrium position of a reaction is first shifted suddenly and then allowed to readjust the equilibrium composition characteristi of the new conditions. O Catalysts are substances that accelerate reactions and affect the net chemical change the reaction. O The rate-determining step is the fastest step in a reaction mechanism that controls the rate of the overall reaction O All statements are TRUE. O None of the statements are TRUE.

Which of the following is TRUE? O In relaxation methods of kinetic analysis, the equilibrium position of a reaction is first shifted suddenly and then allowed to readjust the equilibrium composition characteristi of the new conditions. O Catalysts are substances that accelerate reactions and affect the net chemical change the reaction. O The rate-determining step is the fastest step in a reaction mechanism that controls the rate of the overall reaction O All statements are TRUE. O None of the statements are TRUE.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

How are the following aspects of a reaction affected by the addition of a catalyst? Increased Decreased Not affected Answer Bank rate of the forward reaction rate of the reverse reaction activation energy of the forward reaction activation energy of the reverse reaction What other aspects of a catalyzed reaction are different from the uncatalyzed reaction? the overall reaction O the mechanism
(a) Select all of the correct statements about reaction rates from the choices below. O The lower the rate of a reaction the longer it takes to reach completion. O Reaction rates always increase as masses of solid reactants increase. O The higher the rate of a reaction the longer it takes to reach completion. A balanced chemical reaction is necessary to relate the rate of reaction to the concentration of a reactant. Reaction rate constants decrease with increasing temperature. O Catalysts increase reaction rates. Reaction rates decrease with increasing temperature.
O KINETICS AND EQUILIBRIUM Da Understanding the qualitative predictions of the Arrhenius equa... A certain catalyzed reaction is known to have an activation energy E 40.0 kJ mol. Furthermore, the rate of this reaction is measured at 325. K and found to be 3.7 x 10 M/s. Use this information to answer the questions in the table below. Suppose the concentrations of all reactants is kept the same, but the temperature is lowered by 10% from 325. K to 293. K. choose one The rate will How will the rate of the reaction change? Suppose the concentrations of all reactants is kept the same, but the catalyst is removed, which has the effect of raising the activation energy by 10%, from 40.0 kJ/mol to 44.0 kJ/mo choose one The rate will choose one How will the rate of the reaction change? stay the same rise about 10% rise more than 10% rise less than 10% fall about 10% fall more than 10% fall less than 10%
Which of the following is TRUE about reaction rates? O The order of the reaction is always the same regardless of the initial concentration. O The initial rate is the same for the same reaction at the same temperature even at varying initial concentrations. Rate constanths the same for the same reaction mechanism regardless of the temperature. O Increasing the temperature generally increases the overall reaction order.
What are the units for k in a zero order reaction? * L mol-1 s-1 L3 mol-3 s-1 mol L-1 S-1 None of the above
In a steady-state approximation, it is assumed that O the concentration of the reaction intermediates remains constant and small throughout the reaction. O The concentration of the product remains unchanged and small throughout the reaction. O the concentration of the product remains constant and large throughout the reaction. O the concentrations of the reactants remain constant and small throughout the reaction.
The catalyst influences the rate of reaction in which ways? nothing happens O Decreases it O Increases it O Stops the reaction
please show work or why you chose that answer thankyou so much!
Why is a certain amount of energy required within an effective collision?
O saponification solvation At 25 °C, the solubility of NaCl is 36.0g/100g H,O. How much NaCl can dissolve in 450 g of water at that temperature? * O 8.0 g O 162 g O 0.080 g O 1.62 g The collision theory states that in order to react, reactant particles must collide with sufficient (and proper
According to collision theory, the molecules must have enough energy when they collide to cause chemical bonds to break and form. In other words, for a reaction to happen. What do we call the minimum energy required to initiate a chemical reaction? Choose from the choices below: Activation energy Collision energy Heat energy Reaction energy
4. Activation energy of uncatalyzed reaction and the catalyzed reactionA. If the first quantity is less than the second quantityB. If the first quantity is greater than second quantityC. If the two quantities are equalD. If the two quantities cannot be compared