Kinetics Test-2

SCH4U Kinetics Test March 2011 9. If for the reaction, aX + bY —s products, the rate law is determined to be » = k[X]'[Y]?, then the order of the reaction is which of the following? a. 1 d 4 e. 5 2 O 10. If for the reaction aX + bY ——s products, the rate law is determined to be 7 = k[X]'[Y]°, then &, the order of the reaction is 0 increasing the concentration of Y will have no effect on the rate C. increasing the concentration of X will have no effect on the rate d. increasing the concentration of Y will increase the rate of the reaction e. there is no way to determine the value of k 11. The following diagram represent a kinetic energy distribution at two temperatures. Numbher of Molecules with a Particular Kinetic Energy |-] b Kinetic Energy In comparing the two temperatures, it is obvious that a1, >T, d T,=1, ‘ r,>T, e. it cannot be determined c T, =T, 12. The amount of energy required for a reaction to begin is known as a. enthalpy change d. Kkinetic energy reaction energy e. potential energy @ activation energy 13. The activated complex a. is an unstable molecule b. has the maximum potential energy possible c. may continue on to produce products g Mmay revert to reactants Q all of the above 14. If a reaction can be broken down into a reaction mecfanism, then the steps of the reaction mechanism are known as a. stages of reaction ‘ elementary steps b. activated complexes €. primary equations c. reaction progress 15. The rate determining step is a. the first step in a reaction mechanism the last step in a reaction mechanism @ the slowest step in a reaction mechanism . the fastest step in a reaction mechanism e. the only step in a reaction mechanism Tutoring Pages Page 2