Chemistry - Thermochemistry Question with Solution | TestHub
ChemistryThermochemistryHess's Law of Constant Heat SummationMedium2 minQB
ChemistryMediumsingle choice
Assertion : For & Cl pair net enthalpy change remains zero, when one electron is added in to first one and removed from other one respectively.
Reason : Magnitude of enthalpy change remains same for any reverse process.
Options:
Answer:
A
Solution:
Assertion: Adding an electron to Cl⁺ (electron gain) and removing an electron from Cl (ionization) are reverse processes. The enthalpy change for the forward and reverse processes are equal in magnitude but opposite in sign. Thus, the net enthalpy change is zero.
Reason: The magnitude of enthalpy change for a reverse process is indeed the same as the forward process. This correctly explains the assertion.
Therefore, both assertion and reason are true, and the reason is the correct explanation of the assertion.
Stream:JEESubject:ChemistryTopic:ThermochemistrySubtopic:Hess's Law of Constant Heat Summation
⏱ 2mℹ️ Source: QB
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