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Question 15 4 pts Consider the following generic reaction and the corresponding rate law: X+Y+zStuff Rate...
Consider the following reaction and its associated rate law A + B - C; rate =...
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
4. Consider a hypothetical reaction involving two reactants, X + Y Z a) Write a "generic...
4. Consider a hypothetical reaction involving two reactants, X + Y Z a) Write a "generic rate law for this reaction using variables for the orders of each reactant. b) We want to use the method of integrated rates to determine the order of the reaction with respect to reactant X. What should be true about the concentration of Y in our experiment in order to isolate the behavior of X? c) Write an expression for the pseudo rate constant...
29 (6 pts) How do concentration of reactants, temperature and catalysts affect the rate of a chemical reaction? Exp...
29 (6 pts) How do concentration of reactants, temperature and catalysts affect the rate of a chemical reaction? Explain. Concentration of reactants: mcreases more collisions within the reactants. collisions Temperature: Increase in temperature causes increase in more and more energy in collisions. (increases rate? Catalyst: Lowens energy of activation of reactants cate? (increases rutes
6. Consider the equation: 2NO2(g) → N2(g) +202() What effect will the following changes have on the reaction rate (...
6. Consider the equation: 2NO2(g) → N2(g) +202() What effect will the following changes have on the reaction rate (increase or decrease)? a) The temperature is decreased from 800 K to 300 K? b) A catalyst is added c) The concentration of NO2 gas is doubled. True or False A reaction with larger Eact will proceed faster Raising the temperature of a reaction increases the rate of a reaction Catalysts increase the rate of a reaction by increasing the number...
The rate law of a reaction is rate =k[X]³. The units of the rate constant are
1)The rate law of a reaction is rate =k[X]³. The units of the rate constant areL mol-1 s-1mol² L-2 s-1mol L-1S-2L² mol-2 s-1mol L-1S-12)Given the following rate law, how does the rate of reaction change if the concentration of Z is tripled? Rate =k[X]³[Y]²[Z]⁰The rate of reaction will increase by a factor of136803)What data should be plotted to show that experimental concentration data fits a first-order reaction?1 / [reactant] vs. time[reactant] vs. timeln (k) vs. Ealn (k) vs. 1 / Tln [...
Consider the reaction X Y +Z Which of the following is a possible rate law? a)...
Consider the reaction X Y +Z Which of the following is a possible rate law? a) Rate = k[X] b) Rate = K[Y] c) Rate = k[Y][Z] Rate = k[X][Y] Rate = k[Z] e) Rate 3. What are the units for the rate constant for an overall third order reaction? a) L/mol:s b) LP/mol.s mol/L'S e) L2 For which order reaction is the half-life of the reaction inversely proportional to k, the rate constant? a) zero order b) first order...
Which of the following factor(s) will increase the speed of a chemical reaction? O Adding a...
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
QUESTION 1 Consider the following chemical reaction: Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) Which of...
QUESTION 1 Consider the following chemical reaction: Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) Which of the following changes will increase the rate of this reaction? Decreasing the concentration of HCI. O Adding more MgCl2. O Increasing the pressure of H2. Decreasing the temperature. Adding a catalyst. N QUESTION 2
4. A particular reaction is found to have the following rate law: Rate = k[A] [B]...
4. A particular reaction is found to have the following rate law: Rate = k[A] [B] Which terms in this rate law are made different by each of the following changes? a. The concentration of A is doubled. Kate becomes a times the previous rate b. A catalyst is added. C. The concentration of A is increased by a factor of 2 and the concentration of Bis decreased by a factor of 4. d. The temperature is increased.
Question 23 15 pts Consider the following reaction: N2O(g) + NO2(g) 3NO(g) AH = 155.7 kJ...
Question 23 15 pts Consider the following reaction: N2O(g) + NO2(g) 3NO(g) AH = 155.7 kJ In which direction will the equilibrium be shifted by the following changes? 1. Adding N20 (Select] 2. Removing some N20 (Select] 3. Adding a catalyst (Select] 4. Adding NO [Select] 5. Increasing the temperature of the reaction mixture [ Select) 6. Decreasing the volume of the reaction vessel [Select] Question 24 10 pts A reaction vessel is charged with HI, which partially decomposes to...
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
4. Consider a hypothetical reaction involving two reactants, X + Y Z a) Write a "generic rate law for this reaction using variables for the orders of each reactant. b) We want to use the method of integrated rates to determine the order of the reaction with respect to reactant X. What should be true about the concentration of Y in our experiment in order to isolate the behavior of X? c) Write an expression for the pseudo rate constant...
29 (6 pts) How do concentration of reactants, temperature and catalysts affect the rate of a chemical reaction? Explain. Concentration of reactants: mcreases more collisions within the reactants. collisions Temperature: Increase in temperature causes increase in more and more energy in collisions. (increases rate? Catalyst: Lowens energy of activation of reactants cate? (increases rutes
6. Consider the equation: 2NO2(g) → N2(g) +202() What effect will the following changes have on the reaction rate (increase or decrease)? a) The temperature is decreased from 800 K to 300 K? b) A catalyst is added c) The concentration of NO2 gas is doubled. True or False A reaction with larger Eact will proceed faster Raising the temperature of a reaction increases the rate of a reaction Catalysts increase the rate of a reaction by increasing the number...
Consider the reaction X Y +Z Which of the following is a possible rate law? a) Rate = k[X] b) Rate = K[Y] c) Rate = k[Y][Z] Rate = k[X][Y] Rate = k[Z] e) Rate 3. What are the units for the rate constant for an overall third order reaction? a) L/mol:s b) LP/mol.s mol/L'S e) L2 For which order reaction is the half-life of the reaction inversely proportional to k, the rate constant? a) zero order b) first order...
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
QUESTION 1 Consider the following chemical reaction: Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) Which of the following changes will increase the rate of this reaction? Decreasing the concentration of HCI. O Adding more MgCl2. O Increasing the pressure of H2. Decreasing the temperature. Adding a catalyst. N QUESTION 2
4. A particular reaction is found to have the following rate law: Rate = k[A] [B] Which terms in this rate law are made different by each of the following changes? a. The concentration of A is doubled. Kate becomes a times the previous rate b. A catalyst is added. C. The concentration of A is increased by a factor of 2 and the concentration of Bis decreased by a factor of 4. d. The temperature is increased.
Question 23 15 pts Consider the following reaction: N2O(g) + NO2(g) 3NO(g) AH = 155.7 kJ In which direction will the equilibrium be shifted by the following changes? 1. Adding N20 (Select] 2. Removing some N20 (Select] 3. Adding a catalyst (Select] 4. Adding NO [Select] 5. Increasing the temperature of the reaction mixture [ Select) 6. Decreasing the volume of the reaction vessel [Select] Question 24 10 pts A reaction vessel is charged with HI, which partially decomposes to...
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