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 Chemical potentials Activity co-efficients Concentrations Mass transfer co-efficients Chemical potentials Activity co-efficients Concentrations ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Graetz number is given by mCp/kL kL/mCp mCp/kμ kμ/mCp mCp/kL kL/mCp mCp/kμ kμ/mCp ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately 50 45 32 37 50 45 32 37 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat waves Both B and C Can be reflected by a mirror Travel in straight line Can not pass through vacuum Both B and C Can be reflected by a mirror Travel in straight line Can not pass through vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In forced convection, the heat transfer depends on Re, Gr none of the listed here mainly Gr Re, Pr Re, Gr none of the listed here mainly Gr Re, Pr ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger, one transfer unit means A section of the exchanger in which change in temperature of one stream equals the average driving force in the section The size of the exchanger in which heat transfer rate is 1 kcal/hr Both A and B None of these A section of the exchanger in which change in temperature of one stream equals the average driving force in the section The size of the exchanger in which heat transfer rate is 1 kcal/hr Both A and B None of these ANSWER DOWNLOAD EXAMIANS APP
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