Chemistry - Thermochemistry Question with Solution | TestHub

ChemistryThermochemistryAdiabatic Process/PolytropicMedium2 minPYQ_2020
ChemistryMediumsingle choice

Given,CH3COOHaq→CH3COO-aq+H+aq
ΔH rxn o  = 0.004 kcal  gm −1
Enthalpy change when 1 mole ofBa(OH)2, a strong base, is completely neutralized byCH3COOH(aq)is (ΔH∘of neutralization of strong acid with strong base is = −13.7 kcal  mol −1 )

Options:

Answer:
C
Solution:

ΔH o ionisaton of CH 3 COOH = 0.04 × 60 = 0.24 kcal/mol
∴Enthalpy change=–13.7+0.24×2
= −26.92 kcal  mol −1

Stream:NTA_ABHYASSubject:ChemistryTopic:ThermochemistrySubtopic:Adiabatic Process/Polytropic
⏱ 2mℹ️ Source: PYQ_2020

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