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Stoichiometry

Stoichiometry
Cp - Cv, for an ideal gas is equal to

R/2
2R
R
3R

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Stoichiometry
In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality?

Use of equation of state
None of these
Fugacity co-efficient
Activity co-efficient

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Stoichiometry
1 gm mole of methane (CH₄) contains

4 gm atoms of hydrogen
6.02 x 1023 atoms of hydrogen
3.01 x 1023 molecules of methane
3 gms of carbon

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Stoichiometry
Avogadro number is the number of molecules in one __________ of a gas.

Gram
Litre
Kilogram
Gm.mole

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Stoichiometry
'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the

Vapor pressure vs. temperature
Temperature vs. log (vapor pressure)
Vapor pressure vs. log (temperature)
Log (temperature) vs. log (vapor pressure)

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Stoichiometry
The vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight.

Increases
Increases linearly
Decreases
Remains unchanged

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