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Chemistry - Thermochemistry Question with Solution | TestHub

ChemistryThermochemistryAdiabatic Process/PolytropicMedium2 minPYQ_2020

ChemistryMediumnumerical

Heat of combustion of $A (s)$ is $- 10 kcal {mol}^{- 1}$ and that of $- 15 kcal {mol}^{- 1}$ on combustion released $105 kcal$ of heat. What is the value of $x$ ?

Answer:

5.00

Solution:

${ΔH}_{total} = 3 (- 10) + x (- 15)$
$\Rightarrow - 105 = - 30 - 15 x$
$\Rightarrow 15 x = 75$
$∴ x = 5$

Stream:NTA_ABHYASSubject:ChemistryTopic:ThermochemistrySubtopic:Adiabatic Process/Polytropic

⏱ 2mℹ️ Source: PYQ_2020

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