Chemistry 1b Midterm 2 Worksheet With Answers Page 7
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8Multiple Choice Questions
Each of the following multiple choice questions are worth 5 points.
Your answers need to be filled in on the Scantron provided.
Note: Your Scantrons will not be returned to you, therefore, for
your records, you may want to mark your answers on this sheet.
On the Scantron you need to fill in your perm number, test version,
and name. Failure to do any of these things will result in the loss
of 1 point. Your perm number is placed and bubbled in under the
“ID number”. Do not skip boxes or put in a hyphen. In addition,
leave bubbles blank under any unused boxes. The version number
(A) is bubbled in under the “test form.”
Use the following to answer question 1:
For the reaction a A products, select the reaction order(s) that best fit(s) the
observations.
2
1. A plot of [A]
vs. t gives a straight line.
A) first order in A
B) second order in A
C) zero order in A
D) all of these
E) none of these
2. The reaction profile for the mechanism
(g) NO
slow
NO
(g) + F
F(g) + F(g)
2
2
2
(g) NO
fast
F(g) + NO
F(g)
2
2
shows
A) two maxima, the second maximum being the higher.
B) one maximum for the second step.
C) two maxima, both the same height.
D) two maxima, the first maximum being the higher.
3. For a reaction in a voltaic cell, both H° and S° are positive. Which of the following
statements is true?
A) G° > 0 for all temperatures.
B) E°
will increase with an increase in temperature.
cell
C) E°
will decrease with an increase in temperature.
cell
D) E°
will not change when the temperature increases.
cell
E) None of the above statements is true.
7
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