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.? 0.2 0.6 0.4 0.1 0.2 0.6 0.4 0.1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A vessel of volume 1000 m³ contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately 25 20 34 17 25 20 34 17 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The amount of water vapour condensed (in kg) is 0.1 1 0.065 0.1 1 0.065 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Validity of the relationship, inputs = outputs, holds good for the system at steady state None of these Without chemical reaction & losses Without chemical reaction With chemical reaction None of these Without chemical reaction & losses Without chemical reaction With chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Mass number of an atom is the sum of the numbers of Protons and electrons Both A & B Neutrons and electrons Neutrons and protons Protons and electrons Both A & B Neutrons and electrons Neutrons and protons ANSWER DOWNLOAD EXAMIANS APP
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