Stoichiometry The heat evolved in the combustion of benzene is represented by the equation: C₆H₆ + 7.5 O₂ = 6CO₂ + 3H₂O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C₆H₆ is burnt in an open container, will be __________ kJ/kgmole. +1632.3 +816.15 -1632.3 -2448.45 +1632.3 +816.15 -1632.3 -2448.45 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In case of an unsaturated vapor-gas mixture, the humid volume increases with increase in the Both A & B Absolute humidity at a given temperature Neither A nor B Total pressure Both A & B Absolute humidity at a given temperature Neither A nor B Total pressure ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the Relative saturation Percentage saturation Relative humidity None of these Relative saturation Percentage saturation Relative humidity None of these 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.? 0.4 0.2 0.6 0.1 0.4 0.2 0.6 0.1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Assuming that CO₂ obeys perfect gas law, calculate the density of CO₂ (in kg/m³) at 263°C and 2 atm. 2 4 3 1 2 4 3 1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry How many phases are present at eutectic point? 3 1 Unpredictable 2 3 1 Unpredictable 2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS