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Stoichiometry

Stoichiometry
If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times.

100
10
70
20

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Stoichiometry
Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of

Complete wetting
Wetting
Adsorption
Mixing

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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
-2448.45
+816.15
+1632.3

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Stoichiometry
The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is __________ kg mole.

16
44
1

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Stoichiometry
Addition of a non-volatile solute to a solvent produces a __________ in its solvent.

Boiling point depression
All of these
Freezing point elevation
Vapor pressure lowering

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Stoichiometry
Applicability of Claussius-Clapeyron equation is subject to the condition that the

Neither A nor B
Volume in the liquid state is negligible
Both A & B
Vapor follows ideal gas law

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