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Stoichiometry

Stoichiometry
Which of the following is not a unit of pressure?

Newton/metre²
Bar
Parsec
Kilo-pascal

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Stoichiometry
The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent.

Equal to
Less than
Either more or less; depends on the solvent
More than

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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

0.13
0.11
0.09
0.07

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Stoichiometry
The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface. This statement pertaining to the solubility of gases in liquid is the __________ law.

Raoult's
Henry's
Amgat's
None of these

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Stoichiometry
Heat of solution in a system in which both solute and solvent are liquids is termed as

Heat of hydration
Standard integral heat of solution
Heat of solvation
Heat of mixing

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Stoichiometry
One micron is equal to

Both B & C
10⁻⁴ cm
10⁻⁶ m
10⁻⁴ mm

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