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Stoichiometry

Stoichiometry
Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is

0.5
0.58
0.2
1.72

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Stoichiometry
Pick out the wrong unit conversion of calorific value.

1 kcal/m³ = 0.1124 BTU/ft³
1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg
1 BTU/lb = 2.3 kcal/kg
1 BTU/ft³ = 8.9 kcal/m³ = 0.038 MJ/m³

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Stoichiometry
A reduction process is accompanied with increase in the

Both A & B
Oxidation number
Neither A nor B
Number of electrons

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Stoichiometry
__________ chart is a graph related to Antonie equation.

Mollier's
Enthalpy-concentration
Ostwald
Cox

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Stoichiometry
For any system, the __________ heat of solution is dependent on the temperature and the adsorbate concentration.

Both A & B
Neither A nor B
Differential
Integral

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Stoichiometry
The density of a gas 'X' is twice that of another gas 'Y'. If the molecular weight of gas 'Y' is 'M'; then the molecular weight of the gas 'X' will be

M
2M
M/2
M/4

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