chemistry - kinetics

The activation energy for the isomerization of methyl isonitrile is 160 kJ/mol. Calculate the fraction of methyl isonitrile molecules that have an energy of 160 or greater at 500 K? 510 K? What is the ratio of the fraction at 510K to that at 500K?

I missed this lesson today and would really appreciate someone explaining how to solve this. Thanks =]

  1. 👍 0
  2. 👎 0
  3. 👁 111
asked by Mark
  1. Use the equation for activation complex: fraction=e^-[activation energy/8.314J/mol*temperature
    (also, simply put: f=e^-(Ea/Rt) )

    (I'm a chem student learning/studying this at the moment)

    1. 👍 0
    2. 👎 0
    posted by Kayla

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    The activation energy for the isomerization ol cyclopropane to propene is 274 kJ/mol. By what factor does the rate of this reaction increase as the temperature rises from 256 to 297 oC? (The factor is the ratio of the rates.) A

    asked by Anonymous on February 5, 2013
  2. Chemistry

    1. Calculate the delta H for H2(g)+O2(g)=H2O2(g) Bond energies, kJ x mol^-1 H-H 432 H-O 459 O-O 207 O=O 494 I did: deltaH=(2(207kJ/mol))-(432kJ/mol+494kJ/mol) =-512kJ is that correct? 2. The theoretical effect of an increase in T

    asked by Anonymous on January 26, 2018
  3. chemistry

    The given reaction, cyclopropane propene (isomerization), follows first-order kinetics. The half-live was found to be 4.57 min at 796 K and rate constant was found to be 0.0328 s-1 at 850 K. Calculate the activation energy (in

    asked by bobjahng2 on November 23, 2010
  4. Chemistry

    For a one step reaction, the activation energy for the forward reaction is 40.0 kJ mol-1, and the enthalpy of reaction is -20.0 kJ mol-1. Calculate the activation energy for the reverse reaction. Is my answer correct? (40 kJ

    asked by Anonymous on February 8, 2015
  5. Help! Help! Organic Chemistry

    Alcohol Dehydration of 4-methyl-2-pentanol (a)based on the mechanism of the reaction, explain why (E) and (Z) 4-methyl-2-pentenes and the 2-methyl-2-pentene are the three major alkene products. (b)Explain why the reaction

    asked by Mae on February 14, 2007
  6. Chemistry

    The standard free energy of activation of a reaction A is 73.4 kJ mol–1 (17.5 kcal mol–1) at 298 K. Reaction B is one million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ

    asked by Breauna on September 8, 2014
  7. Chemistry

    The standard free energy of activation of a reaction A is 88.6 kJ mol–1 (21.2 kcal mol–1) at 298 K. Reaction B is one hundred million times faster than reaction A at the same temperature. The products of each reaction are 10.0

    asked by Anonymous on November 25, 2012
  8. Chemistry

    At 19.0°C, what is the fraction of collisions with energy equal to or greater than an activation energy of 151.0 kJ/mol? I got 1.06 which wasn't right

    asked by Caroline on March 4, 2015
  9. Chemistry

    The following data is collected for the decomposition of methy isonitrile at various tempertures: Temp.(C)---{k(/s)} --- lnk---1/T 290--- {2.52*10^-5}--- ?--- ? 299--- {5.25*10^-5}--- ? --- ? 330--- {6.30*10^-4}--- ?--- ? Complete

    asked by Paul on January 26, 2011
  10. Chemistry

    The following data is collected for the decomposition of methy isonitrile at various tempertures: Temp.(C) k(/s) lnk 1/T 290--- 2.52*10^-5 ? ? 299--- 5.25*10^-5 ? ? 330--- 6.30*10^-4 ? ? Complete the table above and, using your

    asked by Paul on January 24, 2011

More Similar Questions