Stoichiometry The value of the gas-law constant 'R' is 1.987 Kcal/kg-mole.°C Kcal/kg-mole.°K Btu/lb-mole.°R Both B & C Kcal/kg-mole.°C Kcal/kg-mole.°K Btu/lb-mole.°R Both B & C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The value of Trouton's ratio (λb/Tb) for a number of substances is 21 (where, λb = molal that of vaporisation of a substance at its normal boiling point, KCal/kg. mole and Tb = normal boiling point, °K). The Kis-tyakowsky equation is used for calculation of Trouton's ratio of __________ liquids. Neither A nor B Polar Both A & B Non-polar Neither A nor B Polar Both A & B Non-polar ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A very dilute solution is prepared by dissolving 'x1' mole of solute in 'x2' mole of a solvent. The mole fraction of solute is approximately equal to 1 - (x1/x2) X1/x2 X2/x1 1/x2 1 - (x1/x2) X1/x2 X2/x1 1/x2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If 1.5 moles of oxygen combines with aluminium to form Al2O₃, then the weight of aluminium (atomic weight = 27 ) used in this reaction is __________ gm. 5.4 54 27 2.7 5.4 54 27 2.7 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The most convenient way of expressing solution concentration is in terms of Molarity Normality Molality Mole fraction Molarity Normality Molality Mole fraction ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry For an endothermic reaction, the minimum value of energy of activation will be (where, ΔH = enthalpy of the reaction) Δ H >ΔH Δ H >ΔH ANSWER DOWNLOAD EXAMIANS APP
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