the following factors can slow down a chemical reaction. A) adding catalyst B) lowering concentration C) increasing concentration D)increasing temperature E) none
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the following factors can slow down a chemical reaction. A) adding catalyst B) lowering concentration C)...
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
Question 1 Glucose metabolism can be represented by the following chemical reaction: C6H12O6(aq)+6O2(g)6CO2(g)+6H2O(l) H for the reaction is -2837 kJ/mole. Is this reaction endothermic or exothermic? Write an expression for the equilibrium constant for this reaction. Given that the value of the equilibrium constant is very large, would you expect this reaction to be fast or slow? Explain the effect on equilibrium of Increasing temperature Increasing pressure by decreasing the volume Decreasing concentration of oxygen Increasing the concentration of...
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
The chemical reaction shown was performed and the concentration of HCI was measured over time. CI,(g) + CHCI,(g) HC(g) +CCI,(8) The (HCI) after 25 s was 0.153 mol/L. After 132 s, the (HCI) was 0.374 mol/L. Calculate the rate of reaction. rate of reaction: mol HCIL Which definition best describes the term activation energy? O the minimum kinetic energy that particles must possess for a chemical reaction to occur O the energy required to remove an electron from a gaseous...
Which of the following statements is/are correct? 1. A catalyst speeds up a reaction by changing ∆H, the enthalpy of the reaction 2. Addition of a catalyst to a reaction changes the equilibrium constant 3. A catalyst increases the rates of both the forward and reverse reactions . 3 only B. 2 only C. 2 & 3 only D. none E. 1 & 2 only Which one of the following statements about the overall order of a reaction is correct?...
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...
48. If the conversion of A to B is slow and B to C is fast, what is the rate equation for this reaction? A) Rate = K[(CH3CHCI][H20] B) Rate - K[(CH3)2CHCI] C) Rate = K[(CH3)CH] [H0] D) Rate = {[(CH3)2CH] 49. Which of the following statements about a catalyst is true? A) A catalyst accelerates a reaction by changing the amount of reactant and product at equilibrium B) A catalyst accelerates a reaction by lowering the energy of activation...
Which of the following might make an irreversible reaction reversible? A) removing a catalyst B) increasing the temperature C) increasing the concentration of the reactants D) all of the above
2) in a catalyzed chemical reaction, one function of a catalyst is to A) increase the number of successful reactant collisions. B) decrease the concentration of reactants. change the equilibrium concentrations of the products and react D) increase the energy given off during the reaction E) increase the temperature at which the reaction is carried out. 3) Refrigerating perishable foods affects biochemical reactions by A) increasing concentrations of antioxidants. B) removing bacteria. C) decreasing the rate of reactions affecting spoilage....