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Stoichiometry

Stoichiometry
The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 x __________

1019
1026
1020
1023

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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.

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

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Stoichiometry
The unit of dynamic viscosity is

Gm/cm sec
Both B & C
Stoke
Poise

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Stoichiometry
Solution made by dissolving equimolar amounts of different solutes in the same amount of a given solvent will have the

Elevation in boiling point in the ratio of their molecular weights
None of these
Different elevation in boiling point
Same elevation in boiling point

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Stoichiometry
The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times.

43834
√2
4
43832

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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

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

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