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 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/x2 X1/x2 1 - (x1/x2) X2/x1 1/x2 X1/x2 1 - (x1/x2) X2/x1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry With increase in the solute concentration, the specific heat of aqueous solutions Decreases Remains unchanged Increases Either A or B; depends on the type of solution Decreases Remains unchanged Increases Either A or B; depends on the type of solution ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H₂ produced will be __________ gm. gm. 5 1 0.5 3 5 1 0.5 3 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will Increase four times Be reduced to l/4th None of these Increase two times Increase four times Be reduced to l/4th None of these Increase two times ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following ideal gas laws are not applicable to mixture of gases ? Dalton's law Amgat's law None of these Boyle's law & Charle's Law Dalton's law Amgat's law None of these Boyle's law & Charle's Law ANSWER DOWNLOAD EXAMIANS APP
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