Stoichiometry With rise in pressure, the solubility of gases in solvent, at a fixed temperature Decreases Decreases linearly Remains unchanged Increases Decreases Decreases linearly Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If a solution of eutectic composition is cooled, __________ reaching the eutectic temperature. The solvent begins to freeze out even before It will not solidify even on It will undergo no change until None of these The solvent begins to freeze out even before It will not solidify even on It will undergo no change until None of these 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 Mole/s Kmole/m² . s Mole/m² . s Mole/cm². s Mole/s Kmole/m² . s Mole/m² . s ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A long cylinder and a sphere both of 5 cms diameter are made from the same porous material. The flat ends of cylinder are sealed. Both the cylinder and sphere are saturated with the same solution of sodium chloride. Later both the objects are immersed for a short and equal interval of time in a large tank of water which is well agitated. The fraction of salt remaining in the cylinder and the sphere are Xc and Xs respectively. Which of the following statement is correct? Xc > Xs Xc = Xs Xc < Xs Xc greater/less than Xs depending on the length of the cylinder Xc > Xs Xc = Xs Xc < Xs Xc greater/less than Xs depending on the length of the cylinder ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Number of gm moles of solute dissolved in 1 kg of solvent is called its Formality Normality Molality Molarity Formality Normality Molality Molarity ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The net heat evolved or absorbed in a chemical process, i.e. total change in the enthalpy of the system is independent of the State of aggregation & the state of combination at the beginning & the end of the reaction Temperature & pressure None of these Number of intermediate chemical reactions involved State of aggregation & the state of combination at the beginning & the end of the reaction Temperature & pressure None of these Number of intermediate chemical reactions involved ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS