Stoichiometry The vapour pressure of water is given by, in Psat = A - (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K.The vapor pressure of water in atm. at 50°C is approximately 0.09 0.13 0.11 0.07 0.09 0.13 0.11 0.07 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 = 1 (+ ve)and Δ V = -ve ΔH = 0 ΔV = 0 Both B and C ΔH = 1 (+ ve)and Δ V = -ve ΔH = 0 ΔV = 0 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 Mole/cm². s Kmole/m² . s Mole/m² . s Mole/s Mole/cm². s Kmole/m² . s Mole/m² . s Mole/s ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Kopp's rule is helpful in finding the Heat capacities of solids Molal heat capacities of gases Heat capacities of gases Activation energy Heat capacities of solids Molal heat capacities of gases Heat capacities of gases Activation energy ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry How much O₂ can be obtained from 90 kg of water? 80 kg 64 kg 90 kg 32 kg 80 kg 64 kg 90 kg 32 kg ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If 1.5 moles of oxygen combines with aluminium to form Al2O₃, then the weight of aluminium (atomic weight = 27 ) used in this reaction is __________ gm. 54 2.7 27 5.4 54 2.7 27 5.4 ANSWER DOWNLOAD EXAMIANS APP
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