Are the following questions True or False? part A)A catalyst is the same as an intermediate...
Are the following questions True or False?
part A)A catalyst is the same as an intermediate in a reaction mechanism.
1-True
2-False
part B)Overall Rate Laws must be determined using experimental data and not the balanced chemical equation.
1-True
2-False
Homework Answers
A)
Catalyst is different from intermediate.
Catalyst act as reactant first and is formed as product in later steps of mechanism
Intermediate act as product first and is used as reactant in later steps of mechanism
Answer: False
B)
By seeing the balanced chemical equation, we can’t predict the rate law.
The chemical reaction always represent the overall reaction and not the reaction details step by step.
Answer: True
Add Answer to:
Are the following questions True or False?
part A)A catalyst is the same as an intermediate...
Which of the following statements is/are correct? 1. A catalyst speeds up a reaction by changing...
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?...
All questions are true or false A catalyst changes both the equilibrium constant and the rate...
All
questions are true or false
A catalyst changes both the equilibrium constant and the rate of a chemical equilibrium. j. Ifthe temperature of a chemical equilibrium is increased, the reaction will shift in a direction that will lead to the consumption of some of the extra heat. An increase in temperature favors an endothermic reaction over an exothermic reaction. k. nundifis Is ined If a chemical equilibrium is exothermic in the forward direction, it is also exothermic in the...
2. A catalyst is a substance that speeds up a chemical reaction, while it does not...
2. A catalyst is a substance that speeds up a chemical reaction, while it does not undergo chemical change and is not part of the chemical equation for this reaction. a. True b. False
Section A. Decide whether the following statements are true or false. 1. The order n is...
Section A. Decide whether the following statements are true or false. 1. The order n is always a positive integer. 2. If the reaction rate doubles as the concentration of [A] doubles, the reaction is first order with respect to A. 3. If the reaction rate is constant as the concentration of [A] doubles, the reaction is zero order with respect to A. 4. The rate law is an equation that shows the dependence of the reaction rate on the...
Label the following statements about equilibrium as true or false. Adding a catalyst will increase the...
Label the following statements about equilibrium as true or false. Adding a catalyst will increase the amount of products. False The concentrations of reactants and products are constant. False The rate of the forward reaction equals the rate of the reverse reaction. True The value of the equilibrium constant will change if the temperature changes False
1. The following mechanism has been proposed for the pas-phase reaction of chloroform and chlorine Ch> 20 (fast)...
1. The following mechanism has been proposed for the pas-phase reaction of chloroform and chlorine Ch> 20 (fast) CI + CHCI, - HCI +CCI, (slow) Cl + CCI - CCI (fast) a) Identify any intermediate(s): b) Identify any catalyst(s): b) Write the balanced equation for the overall reaction: c) Molecularity of each step: step 1. step 2. step 3 d) rds (circle): 1 2 3 d) What is the observable rate law predicted by this mechanism? e) What is the...
Identify the catalyst and intermediate in the following multi-step mechanism: step 1: Br+O3 -> BrO+ O2...
Identify the catalyst and intermediate in the following multi-step mechanism: step 1: Br+O3 -> BrO+ O2 step 2: BrO + O3 -> Br +2O2 a. There is no catalyst or intermediate in the above reaction b. Catalyst: O2 Intermediate: O3 c. Catalyst: BrO∙ Intermediate: Br∙ d. Catalyst: O3 Intermediate: O2 e. Catalyst: Br∙ Intermediate BrO
8. (20 points) Consider the following mechanism, with the accompanying energy diagram, which has been suggested...
8. (20 points) Consider the following mechanism, with the accompanying energy diagram, which has been suggested for the following overall reaction in the presence of a Cl catalyst: 03 +0 202 Step 1: Step 2: 03 + Cl → OCl + O2 OCl + 0 + 02 + Cl +---Ea, Energy - - - - AHrxn --- - Reaction progress- A. Based on the energy diagram, which step is rate limiting? Which step is the fastest? (4 Points) B. Identify...
Part A: True/False/Uncertain Questions Indicate whether each of the following statements is true, false or uncertain...
Part A: True/False/Uncertain Questions Indicate whether each of the following statements is true, false or uncertain and explain why. Most of the marks depend on the quality of the explanation - unsupported answers will receive little or no marks. Each question is worth 5 marks for a total of 20 marks. (1) An increase in the tax rate has the same effect on the aggregate expenditure function as a decrease in government spending.
8. The rate law for the reaction H2O2 + 2H+212 + 2H2O is rate-k[H202][1]. The following...
8. The rate law for the reaction H2O2 + 2H+212 + 2H2O is rate-k[H202][1]. The following mechanism has been suggested. H2O2+1 - HOI + OH - slow OH + H H20 fast HỘI + H+ + + I2 + H2O fast Identify all intermediates included in this mechanism. A) H and I D) Honly B) H and HOI E) H20 and OH C) HOI and OH 9. Which of the following statements is false? A) A catalyst increases the rate...
All
questions are true or false
A catalyst changes both the equilibrium constant and the rate of a chemical equilibrium. j. Ifthe temperature of a chemical equilibrium is increased, the reaction will shift in a direction that will lead to the consumption of some of the extra heat. An increase in temperature favors an endothermic reaction over an exothermic reaction. k. nundifis Is ined If a chemical equilibrium is exothermic in the forward direction, it is also exothermic in the...
2. A catalyst is a substance that speeds up a chemical reaction, while it does not undergo chemical change and is not part of the chemical equation for this reaction. a. True b. False
Section A. Decide whether the following statements are true or false. 1. The order n is always a positive integer. 2. If the reaction rate doubles as the concentration of [A] doubles, the reaction is first order with respect to A. 3. If the reaction rate is constant as the concentration of [A] doubles, the reaction is zero order with respect to A. 4. The rate law is an equation that shows the dependence of the reaction rate on the...
Label the following statements about equilibrium as true or false. Adding a catalyst will increase the amount of products. False The concentrations of reactants and products are constant. False The rate of the forward reaction equals the rate of the reverse reaction. True The value of the equilibrium constant will change if the temperature changes False
1. The following mechanism has been proposed for the pas-phase reaction of chloroform and chlorine Ch> 20 (fast) CI + CHCI, - HCI +CCI, (slow) Cl + CCI - CCI (fast) a) Identify any intermediate(s): b) Identify any catalyst(s): b) Write the balanced equation for the overall reaction: c) Molecularity of each step: step 1. step 2. step 3 d) rds (circle): 1 2 3 d) What is the observable rate law predicted by this mechanism? e) What is the...
8. (20 points) Consider the following mechanism, with the accompanying energy diagram, which has been suggested for the following overall reaction in the presence of a Cl catalyst: 03 +0 202 Step 1: Step 2: 03 + Cl → OCl + O2 OCl + 0 + 02 + Cl +---Ea, Energy - - - - AHrxn --- - Reaction progress- A. Based on the energy diagram, which step is rate limiting? Which step is the fastest? (4 Points) B. Identify...
Part A: True/False/Uncertain Questions Indicate whether each of the following statements is true, false or uncertain and explain why. Most of the marks depend on the quality of the explanation - unsupported answers will receive little or no marks. Each question is worth 5 marks for a total of 20 marks. (1) An increase in the tax rate has the same effect on the aggregate expenditure function as a decrease in government spending.
8. The rate law for the reaction H2O2 + 2H+212 + 2H2O is rate-k[H202][1]. The following mechanism has been suggested. H2O2+1 - HOI + OH - slow OH + H H20 fast HỘI + H+ + + I2 + H2O fast Identify all intermediates included in this mechanism. A) H and I D) Honly B) H and HOI E) H20 and OH C) HOI and OH 9. Which of the following statements is false? A) A catalyst increases the rate...
Most questions answered within 3 hours.
-
2. Qualifications for Union Office
In a 1977 decision* involving the United Steelworkers of
America, the...
asked 43 minutes ago -
Create a state machine that outputs a high signal every time the
string ‘001’ is detected....
asked 1 hour ago -
Use standard reduction potentials to calculate ΔG° for the
reaction: S2- + 4 Cl2 + 12...
asked 1 hour ago -
A 2070 kg space station orbits Earth at an altitude of 4.61×105
m. Find the magnitude...
asked 1 hour ago -
Of
the 94 participants in a drug trial who were given a new
experimental treatment for...
asked 2 hours ago -
Journalize the entries to record the following:
Check No. 12-375 is issued to establish a petty...
asked 3 hours ago -
if
a mammalian cell shows one or more Barr bodies, what is the most
likely sex...
asked 3 hours ago -
Compare and contrast the roles of oncogenes and tumor
suppressors in oncogenesis. How were each discovered...
asked 5 hours ago -
Year
0
1
2
3
4
5
Cash Flow
$-2,500,000
$425,000
$350,000
$275,000
$225,000
$2,625,000
Your...
asked 5 hours ago -
What allows you to relate the mass and temperature of a
molecule to its linear velocity?...
asked 5 hours ago -
A stock's price is $20 at the beginning of a year. There is a 25
percent...
asked 6 hours ago -
a.What is the magnitude of the net gravitational force on the
m1=21kg mass in the figure?(Figure...
asked 8 hours ago