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Stoichiometry

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

4
43834
43832
√2

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Stoichiometry
Real gases approach ideal behaviour at

Low pressure & low temperature
High pressure & low temperature
Low pressure & high temperature
High pressure & high temperature

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Stoichiometry
The molecular velocity of a real gas is proportional to (where, T = absolute temperature of the gas).

T²
1/√T
√T
T

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Stoichiometry
Validity of the relationship, inputs = outputs, holds good for the system at steady state

Without chemical reaction
Without chemical reaction & losses
With chemical reaction
None of these

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Stoichiometry
In a chemical process, the recycle stream is purged for

Increasing the product yield
Enriching the product
Limiting the inerts
Heat conservation

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Stoichiometry
Which of the following is not a colligative property?

Depression of freezing point
Osmotic pressure
Lowering of vapor pressure
None of these

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