Related Questions

In an interphase mass transfer process, the lesser the solubility of a given solute in a liquid, the higher are the chances that the transfer process will be
A Liquid phase resistance-controlled
B Gas phase resistance controlled
C Impossible
D Driven by a non-linear driving force
Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.
A Chemical properties
B Physical properties
C Degree of turbulence
D Interfacial area
For multicomponent multiple phases to be in equilibrium at the same pressure and temperature, the __________ of each component must be same in all phases.
A Chemical potential
B Fugacity
C Both A and B
D Neither A nor B
An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by
A An increase in liquid viscosity
B An increase in relatived volatility for rectification columns
C Decrease in gas solubility for absorbers
D All of the above
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
Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the
A Surrounding temperature
B Average temperature of the fin
C Temperature of the fin end
D Constant temperature equal to that of the base
The necessary and sufficient condition for equilibrium between two phases is
A The concentration of each component should be same in the two phases
B The temperature of each phase should be same
C The pressure should be same in the two phases
D The chemical potential of each component should be same in the two phases
The reaction A (l) R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The number of degrees of freedom are
A 1
B 2
C 3
D 0
The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called
A Humidity ratio
B Relative humidity
C Absolute humidity
D Degree of saturation
Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is
A Finned tube heat exchanger with air inside and steam outside
B Finned tube heat exchanger with air outside and steam inside
C Shell and tube heat exchanger with air inside tubes and steam on shell side
D Shell and tube heat exchanger with air on shell side and steam inside tubes

Next steps