Stoichiometry No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules Collide without loss of energy Are above the inversion temperature Exert no attractive force on each other Do work equal to loss in kinetic energy Collide without loss of energy Are above the inversion temperature Exert no attractive force on each other Do work equal to loss in kinetic energy ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant? 200°C 273°K 273°C 100°C 200°C 273°K 273°C 100°C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At higher temperatures, molal heat capacities for most of the gases (at constant pressure) __________ with increase in temperature. Decreases Varies linearly Does not vary Increases Decreases Varies linearly Does not vary Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Osmotic pressure of a dilute solution of a non volatile solute in a solvent obeying Raoult's law is proportional to the Temperature None of these Moles of non-volatile solute Volume of solution Temperature None of these Moles of non-volatile solute Volume of solution ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Real gases approach ideal behaviour at Low pressure & low temperature Low pressure & high temperature High pressure & high temperature High pressure & low temperature Low pressure & low temperature Low pressure & high temperature High pressure & high temperature High pressure & low temperature ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour Measures the elevation in boiling point Measures the depression in freezing point Is a function of the liquid phase composition Is not dependent on the temperature Measures the elevation in boiling point Measures the depression in freezing point Is a function of the liquid phase composition Is not dependent on the temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS