Stoichiometry The heat change for the reaction, C(s) + 2S(s) → CS₂(l), is 104.2 kJ. It represents the heat of Formation Solution Fusion Combustion Formation Solution Fusion Combustion ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 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. 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 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 No component is concentrated at the surface of the solution ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Pick out the wrong unit conversion of thermal conductivity. 1 BTU/ft².hr.°F/ft = 1.488 kcal/m². hr.°C/m 1 W/cm.°C = 85.985 kcal/m.hr.°C = 57.779 BTU/ft.hr.°F 1 kcal/m.hr.°C = 0.672 BTU/ft.hr.°F = 1.163 W/m. °K 1 BTU/ft².hr.°F/inch = 1.488 kcal/m². hr.°C/m 1 BTU/ft².hr.°F/ft = 1.488 kcal/m². hr.°C/m 1 W/cm.°C = 85.985 kcal/m.hr.°C = 57.779 BTU/ft.hr.°F 1 kcal/m.hr.°C = 0.672 BTU/ft.hr.°F = 1.163 W/m. °K 1 BTU/ft².hr.°F/inch = 1.488 kcal/m². hr.°C/m ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent? Nature of solvent Temperature Pressure Nature of solute Nature of solvent Temperature Pressure Nature of solute ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be -136.5°K 0°C 0°K -136.5°C -136.5°K 0°C 0°K -136.5°C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Real gases approach ideal behaviour at High pressure & high temperature Low pressure & high temperature Low pressure & low temperature High pressure & low temperature High pressure & high temperature Low pressure & high temperature Low pressure & low temperature High pressure & low temperature ANSWER DOWNLOAD EXAMIANS APP
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