Chemistry - Thermodynamics - I Question with Solution | TestHub
ChemistryThermodynamics - IDH/DU for reactionMedium2 minQB
ChemistryMediumnumerical
Solid A (molar mass 40 g/mol, density 2.50 g/ml) transforms to solid B (density 4.00 g/ml). Determine the pressure (in bar) at which Δ H - Δ U = -1.5 kJ per mole for A → B.
Answer:
2500.00
Solution:
Δ V = 40(1/4.00-1/2.50) = 40(0.25-0.40) = -6.0 cm3 = -6.0×10-6 m3. P = (-1500)/(-6.0×10-6) = 2.5×108 Pa = 2500 bar. Ans = 2500.
Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:DH/DU for reaction
⏱ 2mℹ️ Source: QB
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