Question

In: Chemistry

The overall reactions and rate laws for several reactions are given below. Which one of these...

The overall reactions and rate laws for several reactions are given below. Which one of these represents an elementary step?

A) A + 2B → P rate = k[A]2

B) A + 2B → P rate = k[A][B]

c) 2A → P rate = k[A]

D)A + B + C → P rate = k[A][C]

E) A + B → P rate = k[A][B]

Solutions

Expert Solution

If the rate law can be derived from the given reaction, then the given reaction can be said to be elementary reaction

E is elementary reaction because rate law from reaction will be

rate = k [A] [B]

which is same as given rate law

Answer: E

for A, rate law from given reaction is

rate= k [A] [B]^2 which do not match given rate law

for B, rate law from given reaction is

rate= k [A] [B]^2 which do not match given rate law

for C, rate law from given reaction is

rate= k [A]^2 which do not match given rate law

for D, rate law from given reaction is

rate= k [A] [B] [C] which do not match given rate law


Related Solutions

3. In each of the rate laws given below, determine the overall reaction order. A) rate...
3. In each of the rate laws given below, determine the overall reaction order. A) rate = k[A]2[B]0 B) rate = k[A]2[B]-1 C) rate = k[A]1[B]3 D) rate = k[A]3[B]-1 E) rate = k[A]3[B]0 4. Consider the following equation with the rate law: C + D→F + G Rate law = k[C]2[D]1/2 Evaluate each of the following statements as TRUE or FALSE. Show work for each! A) If the concentration of D is increased by a factor of 4, then...
For reactions governed by the rate laws below, the concentration of reactant A is doubled while...
For reactions governed by the rate laws below, the concentration of reactant A is doubled while the concentration of reactant B is halved. Match the rate law to the change in rate of reaction that would be observed. (does the rate of the reaction double, decrease by half, quadruple, or is there no change?) Rate = k[A][B] Rate = k[A]^2[B]0 Rate = k[A][B^]2 Rate = k[A]^3[B]^2
Which of the following is an example of coupled reactions that are likely to be overall...
Which of the following is an example of coupled reactions that are likely to be overall spontaneous as written (select all that apply)? A + B -> C + D ΔG° = -10 kJ mol-1 / E + F -> C ΔG° = 2 kJ mol-1 A + B -> C + D ΔG° = 10 kJ mol-1 / D + E -> F ΔG° = -2 kJ mol-1 A + B -> C + D ΔG° = -10 kJ...
1. The equilibrium constant is given for one of the reactions below. Determine the value of...
1. The equilibrium constant is given for one of the reactions below. Determine the value of the missing equilibrium constant. 2 HD(g) ↔ H2(g) + D2(g) Kc = 0.28 3 H2(g) + 3 D2(g) ↔ 6 HD(g) Kc = ? 2. The reaction A(g)⇌2B(g) has an equilibrium constant of K = 0.070. What is the equilibrium constant for the reaction B(g)⇌12A(g)? 3. Consider the reaction: SO2Cl2(g)⇌SO2(g)+Cl2(g) Kp=2.91×103 at 298 K In a reaction at equilibrium, the partial pressure of SO2...
Given the following reactions, what is the overall reaction and the ∆Hrxn 2A + B →...
Given the following reactions, what is the overall reaction and the ∆Hrxn 2A + B → A2B ∆H° = – 25.0 kJ/mol 2A2B → 2AB + A2 AB2  → Α + 2Β ∆H° = 35.0 kJ/mol ∆H° = – 15.0 kJ/mol A) A + A2B →  AB + A2 ∆Hrxn = +5 kJ/mol B) 2A + B + 2A2B + AB2  → A2B + 2AB + A2 + A + B ∆Hrxn = -5 kJ/mol C) A + A2B →  AB + A3 ∆Hrxn...
Integrated Rate Laws: Working with Zero Order Reactions Experiments have shown the following reaction to be...
Integrated Rate Laws: Working with Zero Order Reactions Experiments have shown the following reaction to be zero order with a rate constant = 2.50 10-1 M/sec. A → B + 2 C If you started with [A] = 2.600 M, how many minutes until the concentration of A = 2.300 M? .02 Correct: Your answer is correct. minutes How many minutes until the concentration of C reaches equals 0.899999999999999 M? 1.73 Incorrect: Your answer is incorrect. minutes
Which of the following will not influence the rate at which nuclear reactions will occur in...
Which of the following will not influence the rate at which nuclear reactions will occur in a nuclear power plant where the fuel elements are a mixture of 235U and 238U? a. the percentage of 235U relative to 238U b. the presence of moderating material c. the presence of control rods d. the percentage of the energy that is used to produce electricity
In which of the following reactions the rate of the reaction does not depend on the...
In which of the following reactions the rate of the reaction does not depend on the concentration of the nucleophile? A) SN1 and SN2 B) E1 and E2 C) SN1 and E1 D) SN2 and E2 E) SN1 and E2
Discuss the costs and benefits of affirmative action laws. Overall, are affirmative action laws effective? You...
Discuss the costs and benefits of affirmative action laws. Overall, are affirmative action laws effective? You may use these or other section headings: 1. Introduction, 2. The problem, 3. Why the problem exists, 4. How to address the problem, 5. Conclusion, 6. Works Cited
In which of the reactions below is ΔH not an enthalpy of formation? Group of answer...
In which of the reactions below is ΔH not an enthalpy of formation? Group of answer choices Both b and c are not enthalpy of formation reactions. 2C(s) + O2(g) → 2CO(g) Mg(s) + Cl2(g) → MgCl2(s) Ca(s) + 1/2O2(g) → CaO(s) C(s) + O2(g) → CO2(g)
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT