Stoichiometry The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements. This is the statement of Kopp's rule Trouton's rule Law of Petit and Dulong Nearnst heat theorem Kopp's rule Trouton's rule Law of Petit and Dulong Nearnst heat theorem ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to Decrease in mean free path Increase in molecular attraction Increase in average molecular speed Increased collision rate among molecules Decrease in mean free path Increase in molecular attraction Increase in average molecular speed Increased collision rate among molecules ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container Will be less than 298 K Will be 298 K Can not be determined Will be greater than 298 K Will be less than 298 K Will be 298 K Can not be determined Will be greater than 298 K ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg.? 0.1 0.4 0.2 0.6 0.1 0.4 0.2 0.6 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A solution with reasonably permanent pH is called a/an __________ solution. Buffer Colloidal Ideal Non-ideal Buffer Colloidal Ideal Non-ideal 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 Mole/m² . s Kmole/m² . s Mole/cm². s Mole/s Mole/m² . s Kmole/m² . s ANSWER DOWNLOAD EXAMIANS APP
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