Heat Transfer In an interphase heat transfer process, the equilibrium state corresponds to equality of temperature in the two phases, while the condition for equilibrium in an interphase mass transfer process is equality of Mass transfer co-efficients Concentrations Activity co-efficients Chemical potentials Mass transfer co-efficients Concentrations Activity co-efficients Chemical potentials ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. Either B or C, depends on the mass of the body >10 10 Either B or C, depends on the mass of the body >10 10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat exchanger tubes are never made of Plain carbon steel Lead Stainless steel Copper Plain carbon steel Lead Stainless steel Copper ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical? 80 1 1.5 0.5 80 1 1.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A multiple effect evaporator as compared to a single effect evaporator of the same capacity has Higher steam economy Lower steam economy Lower heat transfer area Higher solute concentration in the product Higher steam economy Lower steam economy Lower heat transfer area Higher solute concentration in the product ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in Increased economy Decreased economy No effect on economy Lower capacity Increased economy Decreased economy No effect on economy Lower capacity ANSWER DOWNLOAD EXAMIANS APP
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