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Quickly estimate the change in enthalpy (J/mol) to go from CO2 at 223K and 10 bar...
Quickly estimate the change in enthalpy (J/mol) to go from CO2 at 223K and 10 bar to 298K and 90 bar and sketch a graph.
Quickly estimate the change in internal energy (J/mol) to go from CO2 at 273K and 10 bar to 340K and 105 bar.
Solutions
Amanda K answered 3 years agoRelated Solutions
Estimate Keq for the following equilibria at 350 K. R = 8.3145 J/(mol*K). Substance ΔHo(kJ/mol) So(J/(mol*K))...
Estimate Keq for the following equilibria at 350 K. R = 8.3145
J/(mol*K). Substance ΔHo(kJ/mol) So(J/(mol*K)) SnO2(s) -577.6 49.0
H2(g) 0 130.680 CO(g) -110.5 197.7 Sn(s, white) 0 51.2 H2O(l)
-285.83 69.95 Fe(s) 0 27.3 Fe3O4(s) -1118.4 146.4 Correct answer.
Correct. SnO2(s) + 2H2(g) ⇄ Sn(s, white) + 2H2O(l) The number of
significant digits is set to 2; the tolerance is +/-3% LINK TO TEXT
Incorrect answer. Incorrect. 3Fe(s) + 4H2O(l) ⇄ Fe3O4(s) + 4H2(g)
Entry field with incorrect answer...
Using the following info and the standard enthalpy of formation for CO2(g) (-393.5KJ/mol), determine the standard...
Using the following info and the standard enthalpy of formation
for CO2(g) (-393.5KJ/mol), determine the standard enthalpy of
formation of tungsten carbide, WC(s):
WC(s)+ 5/2 O2(g) --> WO3(s) + CO2(g) ∆H° =
-285.80Kcal
W(s) + 3/2 O2(g) --> WO3(s) ∆H° =
-200.16Kcal
The standard enthalpy change of combustion [to CO2(g) and H2O()] at 25°C of the organic solid...
The standard enthalpy change of combustion [to CO2(g)
and H2O()] at 25°C of the organic solid
1,2-benzenediol,
C6H6O2(s), is
determined to be -2874.7 kJ mol-1. What
is the Hf° of
C6H6O2(s) based
on this value?
Use the following data: Hf° H2O () =
-285.83 kJ mol-1 ;
Hf° CO2(g) =
-393.51 kJ mol-1
______ kJ mol-1
1. A chemical reaction at 304 K has an enthalpy change (delta-H) of -73.9 kJ/mol and...
1. A chemical reaction at 304 K has an enthalpy change (delta-H)
of -73.9 kJ/mol and an entropy change (delta-S) of 161.6 kJ/mol.
What is its Gibbs energy change, delta-G, in kJ/mol? Give the
answer to one decimal place.
2.Use the thermodynamic data in your textbook to determine the
temperature below which the following reaction is spontaneous.
(Give the temperature in K, to the nearest degree.)
2SO2 (g) + O2 (g) -- 2SO3 (g)
3.What is the delta-G for the...
The enthalpy change for the following reaction is -136 kJ. Using bond energies, estimate the H-O...
The enthalpy change for the following reaction is
-136 kJ. Using bond energies, estimate the
H-O bond energy in
H2O2(g).
H2(g) + O2(g)
--> H2O2(g)
The enthalpy change for the following reaction is -748 kJ. Using bond energies, estimate the C≡O...
The enthalpy change for the following reaction is -748 kJ. Using
bond energies, estimate the C≡O bond energy in CO(g). 2CO(g) +
2NO(g)2CO2(g) + N2(g)
A gas mixture consisting of 10% ethylene gas (C2H4) and 90% CO2 by mol is combusted...
A gas mixture consisting of 10% ethylene gas (C2H4) and 90% CO2
by mol is combusted with 50% excess air via the following
unbalanced reaction: C2H4 (g) + O2 (g) à CO2 (g) + H2O (g) Air for
the reaction is brought in from outdoors and cooled through a
chiller to remove any humidity. The combustion product gas is
pressurized so that all water vapor is condensed into liquid, which
then combines with the water from the air chiller and...
A gas mixture consisting of 10% ethylene gas (C2H4) and 90% CO2 by mol is combusted...
A gas mixture consisting of 10% ethylene gas (C2H4) and 90% CO2
by mol is combusted with 50% excess air via the following
unbalanced reaction: C2H4 (g) + O2 (g) à CO2 (g) + H2O (g) Air for
the reaction is brought in from outdoors and cooled through a
chiller to remove any humidity. The combustion product gas is
pressurized so that all water vapor is condensed into liquid, which
then combines with the water from the air chiller and...
A gymnast is preparing their dismount from the high bar. Once they let go of the...
A gymnast is preparing their dismount from the high bar. Once
they let go of the bar, they will attempt to complete two complete
twists coupled with a double backflip prior to landing. 1) This
motion is occurring in two planes, about two axes.Identify which
plane, and about which axis, each component of the rotation is
occurring. 2) To generate the proper takeoff velocity and remain in
the air long enough to complete the rotations, the gymnast must let
go...
A system undergoes a change in volume from 100 cm3 /mol to 225 cm3 /mol. The...
A system undergoes a change in volume from 100 cm3 /mol to 225
cm3 /mol. The pressure of the model is predicted by, P = aT
+ B/T^3,
where a = 2.13x10-3 bar/K and
ß = 2.6x10-5 bar^3K^3.
Calculate AS at 350 K (in J/mol-K) b. What is the heat required
at 350 K (in J/mol)? c.
Calculate AU for the system described (in J/mol-K)
SHOW ALL WORK.THANKS
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