Q. All gases during throttling process at atmospheric temperature and pressure show a cooling effect except

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Q. Compressibility factor for almost all the gases are approximately same at the same

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Q. Pick out the wrong statement.

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Q. "At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero". This follows from the

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Q. During Joule-Thomson expansion of gases

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Q. 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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Q. Degress of freedom at triple point will be

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Q. "Law of corresponding states" says that

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Q. Linde gas liquefaction process employs cooling

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Q. 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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Q. Joule-Thomson experiment is

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Q. Boyle's law for gases states that

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Q. 1st law of thermodynamics is nothing but the law of conservation of

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Q. A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect ?

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Q. In a working refrigerator, the value of COP is always

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Q. __________ increases with increase in pressure.

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Q. A refrigerator may be termed as a

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Q. For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

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Q. The number of degrees of freedom for an azeotropic mixture in a two component vapour-liquid equilibria is/are

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Q. Any substance above its critical temperature exists as

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