Stoichiometry The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 x __________ 1023 1019 1020 1026 1023 1019 1020 1026 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m³ . The diffusivity of aniline in air is 0.74xl0⁻⁵m²/s.The numerical value of mass transfer co-efficient is 7.4 x 10⁻³. The rate of evaporation of aniline is 2.97 x 10⁻⁴. Its units are Mole/m² . s Mole/cm². s Mole/s Kmole/m² . s Mole/m² . s Mole/cm². s Mole/s Kmole/m² . s ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The value of Trouton's ratio (λb/Tb) for a number of substances is 21 (where, λb = molal that of vaporisation of a substance at its normal boiling point, KCal/kg. mole and Tb = normal boiling point, °K). The Kis-tyakowsky equation is used for calculation of Trouton's ratio of __________ liquids. Both A & B Polar Neither A nor B Non-polar Both A & B Polar Neither A nor B Non-polar ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A reduction process is accompanied with increase in the Oxidation number Neither A nor B Both A & B Number of electrons Oxidation number Neither A nor B Both A & B Number of electrons ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1 BTU/lb.←°F is equivalent to __________ kcal/kg.°C. 4.97 1.987 2.42 1 4.97 1.987 2.42 1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Enthalpy of a vapor gas mixture may be increased by increasing the Humidity at constant temperature Temperature and the humidity Temperature at constant humidity All of these Humidity at constant temperature Temperature and the humidity Temperature at constant humidity All of these ANSWER DOWNLOAD EXAMIANS APP
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