According to Raoult's law, "The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component." Raoult's law is not applicable under the following assumption/condition. No component is concentrated at the surface of the solution The attractive forces between like and unlike molecules are almost equal In the formation of solution, chemical combination/molecular association between unlike molecules takes place The component molecules are non polar and are of almost equal size TRUE ANSWER : ? YOUR ANSWER : ?
1 kg/cm² is equal to 760 torr 10 metres of water column 1KPa 1 metre of water column TRUE ANSWER : ? YOUR ANSWER : ?
Sometimes, in chemical processes, a part of the outlet stream is rejected as waste in order to keep the impurity level in the system within limits. This phenomenon is termed as the Bypassing Recycling Recirculation Purging TRUE ANSWER : ? YOUR ANSWER : ?
Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of Complete wetting Wetting Adsorption Mixing TRUE ANSWER : ? YOUR ANSWER : ?
Kopp's rule is useful for the determination of Heat capacities of solids Molal heat capacities of gases Heat capacities of gases Activation energy TRUE ANSWER : ? YOUR ANSWER : ?
In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is Unchanged with pressure changes Increases with rise in pressure Increased with decrease in pressure Independent of temperature TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent? Pressure Temperature Nature of solvent Nature of solute TRUE ANSWER : ? YOUR ANSWER : ?
1 Kcal/kg. °C is equivalent to __________ BTU/lb. °F. 2.42 4.97 None of these 1 TRUE ANSWER : ? YOUR ANSWER : ?
The temperature at which the second Virial co-efficient of a real gas is zero is called the Eutectic point Boyle temperature Boiling point Critical temperature TRUE ANSWER : ? YOUR ANSWER : ?