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Stoichiometry

Stoichiometry
The heat capacity of most substances is greater for the __________ state.

Gaseous
None of these
Solid
Liquid

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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 amount of water vapour condensed (in kg) is

1
0.1
0.065

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Stoichiometry
At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to

Increase in average molecular speed
Increased collision rate among molecules
Decrease in mean free path
Increase in molecular attraction

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Stoichiometry
The vapour pressure of water is given by, in Psat = A - (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K.The vapor pressure of water in atm. at 50°C is approximately

0.09
0.07
0.11
0.13

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Stoichiometry
Vapor pressure of a solution is proportional to(where, Sv and St are mole fraction of solvent and solute respectively).

1/St
St
Sv
1/Sv

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Stoichiometry
Boiling point of a non-homogeneous mixture of immiscible liquids is __________ that of any one of its separate components.

Either A or B; depends on the liquids
Equal to
Higher than
Lower than

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