Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: OpenStax
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Textbook Question
Chapter 12, Problem 8E
Explain why an egg cooks move slowly in boiling water in Denver than in New York City. (Hint: Consider the effect 0f temperature on reaction rate and the effect of pressure on boiling point.)
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The following reaction is carried out at 25.0 °C and 1.00 atm:
2NO(g) + O2(g) →→ 2NO2(g)
AH0 kJmol-1
Sº JK-¹mol-1
NO (g)
-110.525
197.674
NO₂ (g)
-393.509
213.74
O₂ (g)
0.00
205.0
Using the data in the table:
• Calculate the enthalpy of reaction, A₁H, for the reaction:
mol-1
• Calculate the entropy change, ASº, for the reaction:
• Calculate AGO for the reaction:
kJ mol-1
Is this reaction spontaneous or not spontaneous at this temperature and
pressure?
kJ
JK-1 mol-1
Under equilibirum conditions at 565.3 K, [H2]=.06906 mol/L, [CO]=.01515 mol/L, [Ch3OH]= .0401 mol/L. What is value of Kc for this reaction at 565.3 K?
(Data attached in picture)
KINETICS AND EQUILIBRIUM
Using Le Chatelier's Principle to predict the result of changing...
Nitrogen and hydrogen react to form ammonia, like this:
N₂(g) +3 H₂(g) →2NH₂(g)
The reaction is exothermic. Suppose a mixture of N₂, H₂ and NH3 has come to equilibrium in a closed reaction vessel. Predict what change, if any, the
perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left.
perturbation
change in composition
The temperature is raised. The pressure of NH3 will ?
The temperature is
lowered.
The pressure of N₂ will
?
?
go up.
go down.
not change.
shift in equilibrium
to the right
to the left
O (none)
to the right
to the left
O (none)
X
1/5
Chapter 12 Solutions
Chemistry by OpenStax (2015-05-04)
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