Chemistry - Thermodynamics - 1 Question with Solution | TestHub

ChemistryThermodynamics - 1Adiabatic Process/PolytropicEasy2 minPYQ_2020
ChemistryEasysingle choice

When the following reaction was carried out in a bomb calorimeter,ΔUis found to be − 740.0 kJ/mol of NH 2 CN(s) (s) at 300 K .
NH2CN(s)+ 32O2g→N2g+ CO2g+ H2O(l)
Calculate ΔH 300 K for the reaction.

Options:

Answer:
A
Solution:

ΔH = ΔU +  Δn g RT
ΔH=−740000+0.5×8.3×300=−738755 J

Stream:NTA_ABHYASSubject:ChemistryTopic:Thermodynamics - 1Subtopic:Adiabatic Process/Polytropic
⏱ 2mℹ️ Source: PYQ_2020

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