Q. A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is

View solution

Q. Fundamental principle of refrigeration is based on the __________ law of thermodynamics.

View solution

Q. For a spontaneous process, free energy

View solution

Q. Equilibrium constant decreases as the temperature

View solution

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

View solution

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

View solution

Q. Pick out the wrong statement.

View solution

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

View solution

Q. During Joule-Thomson expansion of gases

View solution

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

View solution

Q. Degress of freedom at triple point will be

View solution

Q. "Law of corresponding states" says that

View solution

Q. Linde gas liquefaction process employs cooling

View solution

Q. Pick out the wrong statement pertaining to the decomposition of PCl₅ represented by,

PCl₅ ↔ PCl₃ + Cl₂

Degree of dissociation of PCl₅ will

View solution

Q. Joule-Thomson experiment is

View solution

Q. Boyle's law for gases states that

View solution

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

View solution

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 ?

View solution

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

View solution

Q. __________ increases with increase in pressure.

View solution