A reactant decomposes with a half-life of 141 s when its initial concentration i

Question

A reactant decomposes with a half-life of 141 s when its initial concentration is 0.257 M. When the initial concentration is 0.596 M, this same reactant decomposes with the same half-life of 141 s.

Map Sapling Learning macmillan A reactant decomposes with a half-life of 141 s when its initial concentration is 0.257 M. When the initial concentration is 0.596 M, this same reactant decomposes with the same half-life of 141 s. What is the order of the reaction? What is the value and unit of the rate constant for this reaction? Number Tools x 10

Explanation / Answer

since half life doesn't depend on teh initial condition, it is 1st order reaction

Answer: 1

find the rate constant using relationship between rate constant and half life

k = 0.693/half life
= 0.693 / (141 s)
= 4.91*10^-3 s-1

Answer: 4.91*10^-3 s-1

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.