At elevated temperatures, methylisonitrile (CH3NC) isomerizes to acrtonitrile (C

Question

At elevated temperatures, methylisonitrile (CH3NC) isomerizes to acrtonitrile (CN3CN): CH3NC---> CH3CN The dependence of the rate constant on temperature is studied and the graph below is oreoared from the results. hoo the one alternative that BEST completes the statement or answers the question 25. At elevated temperatures, methylisonitrile (CH3NC isomerizes to acetonitrile (CH3CN CH3NC (g) CH3CN (g from the results. of the rate constant on temperature is sudied and the graph below is prepared -10 0.0021 0.0020 0.0019 1/T kl/mol The energy of activation of this reaction is B) 1.6 x 105 D) 4.4 x 10-4 E) 1.9 x 104

Explanation / Answer

From Arhenius equation, ln K= lnKo-Ea/RT

the plot of lnK vs 1/T gvies the slope value of -Ea/R, where Ea= activation energy ( j/mole) and K is rate constant. R = 8.314 J/mole.K

the slope is = (-11+5.5)/ (0.00218-0.0019) = -Ea/R

Ea/R = 19643

Ea= 19643*8.314=163312 =1.63*105 J/mole. ( B is correct)

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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