Chapter 13, Question 69 X Your answer is incorrect. Try again. Phosphine (PH3) decomposes into phosphorus and molecular hydrogen: 4PH3(g) → P4(9) + 6H2(9) Experiments show that this is a first-order reaction, with a rate constant of 1.73 x 102 s1 at 650°C. Which of the following statements are true? Select all that apply. V The overall reaction is elementary. O The data allow E, to be evaluated. The rate constant will be smaller than 1.73 x 102 s1 at 500°C. V The reaction PH3 - PH, + H might be the first, rate-determining step in the mechanism of this reaction.

Chemistry & Chemical Reactivity
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Chapter14: Chemical Kinetics: The Rates Of Chemical Reactions
Section: Chapter Questions
Problem 19PS: Hydrogen peroxide, H2O2(aq), decomposes to H2O() and O2(g) in a reaction that is first-order in H2O2...
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Chapter 13, Question 69
X Your answer is incorrect. Try again.
Phosphine (PH3) decomposes into phosphorus and molecular hydrogen:
4PH3(g) - P4(9) + 6H2(g)
Experiments show that this is a first-order reaction, with a rate constant of 1.73 x 102 s at 650°C. Which of the following statements are true? Select all that apply.
V The overall reaction is elementary.
O The data allow E, to be evaluated.
M The rate constant will be smaller than 1.73 x 10 2 s at 500°C.
V The reaction PH3 - PH, + H might be the first, rate-determining step in the mechanism of this reaction.
Transcribed Image Text:Chapter 13, Question 69 X Your answer is incorrect. Try again. Phosphine (PH3) decomposes into phosphorus and molecular hydrogen: 4PH3(g) - P4(9) + 6H2(g) Experiments show that this is a first-order reaction, with a rate constant of 1.73 x 102 s at 650°C. Which of the following statements are true? Select all that apply. V The overall reaction is elementary. O The data allow E, to be evaluated. M The rate constant will be smaller than 1.73 x 10 2 s at 500°C. V The reaction PH3 - PH, + H might be the first, rate-determining step in the mechanism of this reaction.
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