Chemical Engineering :: Chemical Engineering Thermodynamics
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No work is done by the system, when a reaction occurs at constant
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If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase are known, then the latent heat of fusion can be calculated by the
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The freezing point of a liquid decreases when the pressure is increased, if the liquid __________ while freezing.
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"At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero". This follows from the
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During Joule-Thomson expansion of gases
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The accentric factor of a materical, 'ω', is defined as ω = -log10(Prsat)Tr-1 = 0.7, where, Prsat = reduced vapor pressure, Tr = reduced temperature. The value of accentric factor is always
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"Law of corresponding states" says that
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Linde gas liquefaction process employs cooling
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Pick out the wrong statement pertaining to the decomposition of PCl5 represented by, PCl5
PCl3 + Cl2.Degree of dissociation of PCl5 will
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A.
, two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same.
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B.
the surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature.
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C.
no gas can be liquified above the critical temperature, howsoever high the pressure may be.
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D.
the molar heat of energy of gas at constant volume should be nearly constant (about 3 calories).
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