The rate constant k for a certain reaction is measured at two different temperatures: temperature 376.0 °C 247.0 °C k 5.3 x 10° 2.8× 108 Assuming the rate constant obeys the Arrhenius equation, calculate the activation energy E for this reaction. Round your answer to 2 significant digits. E = 8 kJ mol x10 X

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Author:Lawrence S. Brown, Tom Holme
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Chapter13: Electrochemistry
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The rate constant k for a certain reaction is measured at two different temperatures:
temperature
376.0 °C
E =
247.0 °C
Assuming the rate constant obeys the Arrhenius equation, calculate the activation energy E for this reaction.
Round your answer to 2 significant digits.
kJ
mol
A chemist designs a galvanic cell that uses these two half-reactions:
O₂(g)+4H* (aq) +4e
2 H₂O(1)
Cl₂(g)+2e → 2 C1 (aq)
Write a balanced
equation for the
half-reaction that
happens at the
cathode.
Answer the following questions about this cell.
Write a balanced
equation for the
half-reaction that
happens at the
anode.
Write a balanced
equation for the
overall reaction
that powers the
cell. Be sure the
reaction is
spontaneous as
written.
k
5.3 × 10
2.8×108
half-reaction
Do you have
enough
information to
calculate the cell
voltage under
standard
conditions?
If you said it was
possible to
calculate the cell
voltage, do so and
enter your answer
here. Round your
answer to 2
significant digits.
0
O Yes
O No
Ov
x10
X
standard reduction potential
E+1.23 V
red
FO =+1.359 V
red
ローロ
e
00
Transcribed Image Text:The rate constant k for a certain reaction is measured at two different temperatures: temperature 376.0 °C E = 247.0 °C Assuming the rate constant obeys the Arrhenius equation, calculate the activation energy E for this reaction. Round your answer to 2 significant digits. kJ mol A chemist designs a galvanic cell that uses these two half-reactions: O₂(g)+4H* (aq) +4e 2 H₂O(1) Cl₂(g)+2e → 2 C1 (aq) Write a balanced equation for the half-reaction that happens at the cathode. Answer the following questions about this cell. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written. k 5.3 × 10 2.8×108 half-reaction Do you have enough information to calculate the cell voltage under standard conditions? If you said it was possible to calculate the cell voltage, do so and enter your answer here. Round your answer to 2 significant digits. 0 O Yes O No Ov x10 X standard reduction potential E+1.23 V red FO =+1.359 V red ローロ e 00
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