Related Questions

The change in enthalpy per unit weight of adsorbed gas when adsorbed on gas free or "outgassed" adsorbent to from a definite concentration of adsorbate is called its
A Integral heat of adsorption
B Heat of wetting
C Differential heat of adsorption
D Heat of normal condensation
The change in enthalpy, when a unit quantity of gas is absorbed by relatively large quantity of adsorbent (on which a definite concentration of the adsorbed gas already exists) is termed as the
A Differential heat of adsorption
B Heat of wetting
C Integral heat of adsorption
D None of these
Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
A Rourkela (under SAIL)
B Bokaro (under SAIL)
C Sindri (under FCI)
D Baroda (under G.S.F.C.)
Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of
A Mixing
B Adsorption
C Wetting
D Complete wetting
The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be
A 0.4
B 0.56
C 0.67
D 1.67
A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia.
A Coke oven
B Producer
C Natural
D Coal
Ammonia synthesis gas is produced from natural gas by
A Thermal cracking
B Steam reforming
C Partial oxidation
D Hydrogenation
Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called __________ solutions.
A Ideal
B Real
C Isotonic
D None of these
High pressure steam is expanded adiabati-cally and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process:
A ΔH = 0 and ΔS = 0
B ΔH ≠ 0 and ΔS = 0
C ΔH ≠ 0 and ΔS ≠ 0
D ΔH = 0 and ΔS ≠ 0
The scales form in heat exchanges after a period of operation and provide additional resistance to heat transfer with some heat transfer coefficient . The reciprocal of this scale heat transfer coefficient is called .
A scaling factor
B forming factor
C resisting factor
D fouling factor

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