Chemistry - Thermochemistry Question with Solution | TestHub
ChemistryThermochemistryEnthalpy of CombustionEasy2 minQB
ChemistryEasystatement
Statement 1: The magnitude of the enthalpy of combustion of trans-2-butene is greater than that of cis-2-butene.
Statement 2: cis-2-Butene is thermodynamically less stable than trans-2-butene.
Options:
Answer:
D
Solution:
Both isomers burn to produce the same products; therefore, the less stable isomer will release more heat. The cis isomer is less stable due to methyl-methyl crowding. Consequently, cis-2-butene exhibits a larger magnitude of combustion. Thus, Statement 1 is incorrect, and Statement 2 is correct.
The final answer is (d).
Stream:JEESubject:ChemistryTopic:ThermochemistrySubtopic:Enthalpy of Combustion
⏱ 2mℹ️ Source: QB
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