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Stoichiometry

Stoichiometry
Density of carbon dioxide is __________ kg/Nm³.

22.4/44
44/22400
None of these
44/22.4

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Stoichiometry
The temperature of a gas in a closed container is 27° C. If the temperature of the gas is incresed to 300° C, then the pressure exerted is

Trebled
Halved
Unpredictable
Doubled

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Stoichiometry
Colligative properties of a dilute solution are those, which depend entirely upon the

Number of solute molecules contained in a given volume of the solvent
None of these
Constitution of the solute
Chemical composition of the solute

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Stoichiometry
In a binary liquid system, the composition expressed as __________ is independent of the temperature & pressure.

Kg-mole of solute/kg-mole of solvent
Kg of solute/kg of solvent
Kg-mole of solute/1000 kg of solvent
All of these

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Stoichiometry
One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The latent heat of condensation (kJ/kg⁻¹ ) under these conditions is

540
2263
40732
2676

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

10
100
20
70

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