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Stoichiometry

Stoichiometry
The value of gas constant 'R' is __________ kcal/kg.mole.°C.

1.987
None of these
2.79
3.99

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Stoichiometry
A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is

N₂O₃
N₂O₄
N₂O₅
None of these

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Stoichiometry
1 kg/m² is equal to __________ mm water column.

10
100
1000
1

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Stoichiometry
Heat of __________ of a fuel is called its calorific value.

Vaporisation
Reaction
Formation
Combustion

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Stoichiometry
80 kg of Na₂SO₄ (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na₂SO₄ .10H₂O crystals separate out. The weight fraction of Na₂SO₄ in the remaining solution is

1
0.18
0.24

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Stoichiometry
A saturated vapor on being compressed would

Form wet steam
Both A & B
Condense
Neither A nor B

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