Chemistry - Thermodynamics - II Question with Solution | TestHub

ChemistryThermodynamics - IICalculation of DSMedium2 minQB

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For 1 mole substance variation of absolute entropy with temperature is given by following graph.

What is molar enthalpy of vapourisation (ΔH_vap).

Answer:

Solution:

$Δ S_{vap.} = \frac{Δ H _{vap.}}{T _{b}}$

$200 = \frac{Δ H _{vap}}{100}$

$Δ H_{vap.} = 200 \times 100 J = 20 kJ$

Stream:JEESubject:ChemistryTopic:Thermodynamics - IISubtopic:Calculation of DS

⏱ 2mℹ️ Source: QB

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