Chemistry - Thermochemistry Question with Solution | TestHub
ChemistryThermochemistryEnthalpy of FormationEasy2 minQB
ChemistryEasysingle choice
A quantity that cannot be directly measured is
Options:
Answer:
B
Solution:
The formation reaction 2C(s) + H2(g) → C2H2(g) cannot be carried out directly and quantitatively in a calorimeter, so Δf H of acetylene is obtained indirectly from combustion data. The other three are measured directly. This is option (b).
Stream:JEESubject:ChemistryTopic:ThermochemistrySubtopic:Enthalpy of Formation
⏱ 2mℹ️ Source: QB
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