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Stoichiometry

Stoichiometry
Assuming that CO₂ obeys perfect gas law, calculate the density of CO₂ (in kg/m³) at 263°C and 2 atm.

1
2
4
3

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Stoichiometry
One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The amount of water vapour condensed (in kg) is

0.1
0.065
1

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Stoichiometry
Kinetic theory of gases stipulates that, the

Molecules possess appreciable volume
None of these
Energy is lost during molecular collisions
Absolute temperature is a measure of the kinetic energy of molecules

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Stoichiometry
If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its

Saturation temperature
Dew point
Bubble point
Both B and C

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Stoichiometry
Pick out the wrong unit conversion of calorific value.

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

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

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

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