Stoichiometry Addition of a non-volatile solute to a pure solvent Decreases its freezing point Both B and C Increases its freezing point Increases its boiling point Decreases its freezing point Both B and C Increases its freezing point Increases its boiling point ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing ) ? ΔH = 0 ΔV = 0 ΔH = 1 (+ ve)and Δ V = -ve Both B and C ΔH = 0 ΔV = 0 ΔH = 1 (+ ve)and Δ V = -ve Both B and C 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 Kmole/m² . s Mole/s Mole/m² . s Mole/cm². s Kmole/m² . s Mole/s Mole/m² . s Mole/cm². s ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10⁻³ T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to - 100°C is 18.33 kJ 18.11 kJ 16.15 kJ 10.73 kJ 18.33 kJ 18.11 kJ 16.15 kJ 10.73 kJ ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Number of gram equivalent of solute dissolved in one litre of solution is called its Molarity Formality Normally Molality Molarity Formality Normally Molality ANSWER DOWNLOAD EXAMIANS APP
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