Mass Transfer The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec. 0.25 0.0025 2.5 1.25 0.25 0.0025 2.5 1.25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the Mass transfer co-efficient Volumetric diffusivity Thermal diffusivity Kinematic viscosity Mass transfer co-efficient Volumetric diffusivity Thermal diffusivity Kinematic viscosity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following remains constant during sensible cooling process ? None of the listed here Specific humidity & Partial pressure of vapour Partial pressure of vapour Specific humidity None of the listed here Specific humidity & Partial pressure of vapour Partial pressure of vapour Specific humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid ) P = P P P < P P >>P P = P P P < P P >>P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is 100 10 1 5 100 10 1 5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Channelling is most severe At very high liquid flow rate In towers packed with stacked packing In towers packed randomly with crushed solids In dumped packing of regular units At very high liquid flow rate In towers packed with stacked packing In towers packed randomly with crushed solids In dumped packing of regular units ANSWER DOWNLOAD EXAMIANS APP
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