Predict the energy difference between pent-1-ene and cis-pent-2-ene. Part AUse the data in Table 7-2 to predict the energy difference between pent-1-ene and cis-pent-2-ene.Express your answer to two siginificant figures.?6.6kJ/molSubmitPrevious Answers Request AnswerX Incorrect; Try Again; 2 attempts remaining TABLE 7-2Molar Heats of Hydrogenation of AlkenesMolar Heat ofHydrogenation (-AH")NameStructurekJkcalGeneral Structureethene (ethylene)H,C=CH2136.032.5}unsubstitutedCH3-CH=CH,CH3-CH CH=CH2CH3-CH CH,-CH=CH2CH3-(CH)3-CH=CH2(CH3),CH-CH=CH2(CH3),C-CH=CH2propene (propylene)123.429.5but-1-ene125.9126.030.1monosubstitutedpent-1-enehex-1-ene30.1125.0R-CH=CH23-methylbut-1-ene3,3-dimethylbut-1-ene126.3125.829.930.230.1CH3CH3cis-but-2-ene118.528.3disubstituted (cis)HH.R.RCH3-CH2CH3cis-pent-2-ene117.728.1HH.HH.2-methylpropene(isobutylene)2-methylbut-1-ene(CH3),C=CH2117.828.2disubstituted (geminal)CH3-CH2-C=CH2118.228.3Rc=CH2RČH32,3-dimethylbut-1-ene(CH3),CH-C=CH,116.327.8ČH3CH3H.trans-but-2-ene114.627.4disubstituted (trans)HCH3RC=CHCH-CH2Htrans-pent-2-ene113.827.2HRHCH32-methylbut-2-eneCH C=CH-CH3111.6trisubstitutedRC=CHRČH32,3-dimethylbut-2-ene(CH3),C=C(CH3)2110.426.4tetrasubstitutedR,C=CR2Note: A lower heat of hydrogenation corresponds to lower energy and greater stability of the alkene.

We are given the molar heat of hydrogenation of alkenes:

Answered: Use the data in Table 7-2 to predict…

Organic Chemistry: A Guided Inquiry

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Author:Andrei Straumanis

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Chapter18: Aromaticity

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Use the data in Table 7-2 to predict the energy difference between pent-1-ene and cis-pent-2-ene. Express your answer to two siginificant figures. VO Az ? 6.6 kJ/mol Submit Previous Answers Request Answer