In Exercise 89 in Chapter 3, the Lewis structures for benzene (C 6 H 6 ) were drawn. Using one of the Lewis Structures, estimate Δ H f ° for C 6 H 6 ( g ) using bond energies and given that the standard enthalpy of formation of C(g) is 717 kJ/mol. The experimental Δ H f ° value for C 6 H 6 ( g ) is 83 kJ/mol. Explain the discrepancy between the experimental value and the calculated Δ H f ° value for C 6 H 6 ( g ).
In Exercise 89 in Chapter 3, the Lewis structures for benzene (C 6 H 6 ) were drawn. Using one of the Lewis Structures, estimate Δ H f ° for C 6 H 6 ( g ) using bond energies and given that the standard enthalpy of formation of C(g) is 717 kJ/mol. The experimental Δ H f ° value for C 6 H 6 ( g ) is 83 kJ/mol. Explain the discrepancy between the experimental value and the calculated Δ H f ° value for C 6 H 6 ( g ).
Solution Summary: The author explains that the standard enthalpy of formation should be calculated and the reason for experimental value is lesser than the calculated value has to be explained.
In Exercise 89 in Chapter 3, the Lewis structures for benzene (C6H6) were drawn. Using one of the Lewis Structures, estimate
Δ
H
f
°
for C6H6(g) using bond energies and given that the standard enthalpy of formation of C(g) is 717 kJ/mol. The experimental
Δ
H
f
°
value for C6H6 (g) is 83 kJ/mol. Explain the discrepancy between the experimental value and the calculated
Δ
H
f
°
value for C6H6(g).
Add substituents to draw the conformer below (sighting down
the indicated bond), then rotate the back carbon to provide the
anti staggered conformer.
+
H3C
H
Ph
H
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what temperature does a 50% (mole
fraction) of ammonia/water liquid
mixture boil at 1 atm
1) Suppose 0.1 kg ice at 0°C (273K) is in 0.5kg water at 20°C (293K). What is the change in entropy of the ice as it melts at 0°?
To produce the original "water gas" mixture, carbon (in a combustible form known as coke) is reacted with steam: 131.4 kJ + H20(g) + C(s) → CO(g) + H2(g) From this information and the equations in the previous problem, calculate the enthalpy for the combustion or carbon to form carbon dioxide.
kindly show me how to solve both parts of the same long problem. Thanks
Chapter 7 Solutions
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