CH3CH3, CH2CH2 or HCCH
A: which compound has the longest carbon - carbon bond length ?
B: which compound has the shortest carbon - carbon bond length ?
C: which compound has the highest carbon - carbon bond strength ?
D: which compound has the smallest carbon - carbon bond strength ?
would appreciate any help
chemistry carbon - carbon questions?
2019-03-19 5:06 pm
回答 (3)
2019-03-19 6:48 pm
✔ 最佳答案
H₃C-CH₃, H₂C=CH₂, HC≡CHA: H₃C-CH₃ has the longest carbon - carbon bond length.
(Bond length: C-C single bond > C=C double bond > C≡C triple bond)
B: HC≡CH has the shortest carbon - carbon bond length.
(Bond length: C-C single bond > C=C double bond > C≡C triple bond)
C: HC≡CH has the highest carbon - carbon bond strength.
(Bond strength: C≡C triple bond > C=C double bond > C-C single bond)
D. H₃C-CH₃ has the smallest carbon - carbon bond strength.
(Bond strength: C≡C triple bond > C=C double bond > C-C single bond)
2019-03-19 8:05 pm
CH3CH3 (Ethane) single bond between carbons ;
longest length (0.154 nm ) ; weakest bond (348 kJ mol^-1)
CH2CH2 (Ethene) double bond between carbons
' shorter length (0.134 nm) ; stronger bond (612 kJmol^-1)
CHCH (Ethyne) triple bond between carbons
' shortest bond length (0.120 nm) ; strongest bond (837 kJmol^-1).
longest length (0.154 nm ) ; weakest bond (348 kJ mol^-1)
CH2CH2 (Ethene) double bond between carbons
' shorter length (0.134 nm) ; stronger bond (612 kJmol^-1)
CHCH (Ethyne) triple bond between carbons
' shortest bond length (0.120 nm) ; strongest bond (837 kJmol^-1).
2019-03-19 6:08 pm
A CH3CH3
B HCCH
C HCCH
D CH3CH3
B HCCH
C HCCH
D CH3CH3
收錄日期: 2021-05-01 22:40:58
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