QUESTION 2 Which factors would increase the rate of a reaction? I. increasing the temperature II. Increasing the c...
Question 13 (1 point) Which of the following actions would increase the rate of a reaction? Diluting the reactants by a factor of 2 Decreasing the temperature by 10°C Increasing the concentration of the reactants by a factor of 2 Increasing the concentration of the product by a factor of 2
A. “A →B" B "B C” C. " C D" D. None of the above 5. Which of the following are true of reaction rates? I. The overall rate law is determined by the fastest step of a reaction II. The presence of a catalyst will increase the number of molecules entering the transition state III. An increase in temperature will increase the rate of a reaction IV. Increasing the concentration of reactants will increase the rate at which products...
Question 15 4 pts Consider the following generic reaction and the corresponding rate law: X+Y+zStuff Rate = k[Y][Z]2 Which of the following changes will NOT increase the rate of this reaction? Increasing the concentration of reactant X Increasing the concentration of reactant z Adding a catalyst Increasing the temperature O Increasing the average number of collisions per second of the reactants
Select the factors that might influence the rate of a chemical reaction. changing the concentration of reactants reaction rate cannot change adding a catalyst changing the temperature
For the general reaction A+BC ABC how would each event affect the rate of the reaction? Increase reaction rate Decrease reaction rate Answer Bank increasing the concentration of A decreasing the concentration of BC increasing the temperature adding a catalyst
Which of the following changes would increase the vapor pressure of a liquid? i. An increase in temperature ii. An increase in the intermolecular forces in the liquid iii. An increase in the size of the open vessel containing the liquid a) i and ii only b) i and iii only c) i only d) ii only e) iii only If the rate of evaporation from the surface of a liquid exceeds...
In the endothermic reaction 2NOBr(g) = 2NO(g) + Br2(g) at equilibrium, which of the following changes will result in an increase in the partial pressure of NOBr? 1. decreasing the partial pressure of Br2 II. increasing the size of the reaction vessel III. lowering the overall temperature of the reaction IV. adding a catalyst V. adding He(g) O A I and II I and II O B lland III O c IV and V IV and V III and V...
Consider the following reaction and its associated rate law A + B - C; rate = k[A]2 Which of the following will not increase the rate of the reaction? Select one: a. increasing the concentration of reactant A O b. increasing the concentration of reactant B O c. increasing the temperature of the reaction d. adding a suitable catalyst O e. all of the above
Which of the following factor(s) will increase the speed of a chemical reaction? O Adding a catalyst O Raising the concentrations of reactants Increasing the temperature of the reaction Increasing the frequency of collisions between reactants All of the above
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant concentration C) A catalyst D) Temperature, reactant concentration, and a catalyst 13.) A fast reaction rate for a chemical reaction is dependent on: A) having a large activation energy B) having a small activation energy C) being exothermic D) being endothermic 14.)) A catalyst is A) a substance that decreases the energy of the products. B) a product in a chemical reaction. c) a...