题目内容

An () in which of the following results in a () in the rate of the chemical reaction? ()

A. temperature
B. concentration
C. collision frequency
D. energy of activation
E. fraction of collisions with proper orientation

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A. 0
B. 1
C. 2
D. 3
E. 4

A. 1-butene
B. 1-pentene
C. cyclohexene
D. ethene
E. 2-butene

A. use of a catalyst
B. a more positive ΔH°
C. a more positive ΔS°
D. a larger rate constant
E. none of the above

A. 1
B. 2
C. 3
D. 4
E. 5