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Stoichiometry

Stoichiometry
How much O₂ can be obtained from 90 kg of water?

32 kg
90 kg
80 kg
64 kg

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Stoichiometry
1 centipoise is equivalent to

2.42 lb/ft.second
1 centistoke
2.42 lb/ft.hr
1 gm/cm.second

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Stoichiometry
If pH value of a solution is 8, then its pOH value will be

1
10
7
6

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Stoichiometry
Heat of transition is the heat evolved or absorbed, when a substance is converted from

Solid to liquid
Vapor to liquid
One allotropic form to another allotropic form
Vapor to solid

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Stoichiometry
The heats of vaporisation of CS₂, C₂H₅OH &H₂O are 26.8, 38.6 & 40.6 KJ/kg mole respectively. The order of decreasing inter-molecular forces in these liquids is

CS₂ > C₂H₅OH > H₂O
H₂O > C₂H₅OH > CS₂
H₂O > CS₂ > C₂H₅OH
CS₂ > H₂O > C₂H₅OH

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Stoichiometry
1 kgf/cm² is not equal to

10000 mm wc
1 torr
1 bar
100 KPa = 100 000 N/m²

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