Pentane is one of the most volatile of the hydrocarbons in gasoline. At 298.15 K, the following enthalpies of formation are given for pentane: Δ t H ° [ C z H 12 ( 1 ) ] = − 173.5 kJ mol − 1 ; Δ t H ° [ C z H 12 ( g ) ] = − 146.9 kJ Estimate the normal boiling point of pentane. Estimate Δ T G ° for pentane at 298 K. Comment on the significance of the sign of Δ v a c G ° for pentane at 298 K.
Pentane is one of the most volatile of the hydrocarbons in gasoline. At 298.15 K, the following enthalpies of formation are given for pentane: Δ t H ° [ C z H 12 ( 1 ) ] = − 173.5 kJ mol − 1 ; Δ t H ° [ C z H 12 ( g ) ] = − 146.9 kJ Estimate the normal boiling point of pentane. Estimate Δ T G ° for pentane at 298 K. Comment on the significance of the sign of Δ v a c G ° for pentane at 298 K.
Solution Summary: The author explains that the normal boiling point of pentane should be predicted. The standard enthalpy for a reaction is calculated by the formula.
Pentane is one of the most volatile of the hydrocarbons in gasoline. At 298.15 K, the following enthalpies of formation are given for pentane:
Δ
t
H
°
[
C
z
H
12
(
1
)
]
=
−
173.5
kJ
mol
−
1
;
Δ
t
H
°
[
C
z
H
12
(
g
)
]
=
−
146.9
kJ
Estimate the normal boiling point of pentane.
Estimate
Δ
T
G
°
for pentane at 298 K.
Comment on the significance of the sign of
Δ
v
a
c
G
°
for pentane at 298 K.
#1. Retro-Electrochemical Reaction: A ring has been made, but the light is causing the molecule to un-
cyclize. Undo the ring into all possible molecules. (2pts, no partial credit)
hv
Don't used Ai solution
I have a question about this problem involving mechanisms and drawing curved arrows for acids and bases. I know we need to identify the nucleophile and electrophile, but are there different types of reactions? For instance, what about Grignard reagents and other types that I might not be familiar with? Can you help me with this? I want to identify the names of the mechanisms for problems 1-14, such as Gilman reagents and others. Are they all the same? Also, could you rewrite it so I can better understand? The handwriting is pretty cluttered. Additionally, I need to label the nucleophile and electrophile, but my main concern is whether those reactions differ, like the "Brønsted-Lowry acid-base mechanism, Lewis acid-base mechanism, acid-catalyzed mechanisms, acid-catalyzed reactions, base-catalyzed reactions, nucleophilic substitution mechanisms (SN1 and SN2), elimination reactions (E1 and E2), organometallic mechanisms, and so forth."
Chapter 13 Solutions
General Chemistry: Principles And Modern Applications Plus Mastering Chemistry With Pearson Etext -- Access Card Package (11th Edition)
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