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Stoichiometry

Stoichiometry
For a neutral solution (pH = 7), the value of[H⁺] [OH⁻] is equal to

> 1
< 1
1

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Stoichiometry
Pick out the wrong unit conversion of mass transfer co-efficient.

1 kg/hr.m².atm= 0.98687 kg/hr. m .bar
1 lb/hr . ft² = 4.8823 kg/hr . m²
1 kg/hr . m² = 4.8823 lb/hr . ft²
1 lb/hr.ft³.atm. = 4.8182 kg/hr.m².bar

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Stoichiometry
One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about

0.67
0.33
0.40
0.19

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Stoichiometry
The depression in freezing point of a solution is

Neither A nor B
Both A & B
Inversely proportional to the mass of solvent
Directly proportional to the mole of solute

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Stoichiometry
In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is

Independent of temperature
Unchanged with pressure changes
Increased with decrease in pressure
Increases with rise in pressure

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Stoichiometry
A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is

None of these
N₂O₃
N₂O₄
N₂O₅

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