Stoichiometry

Stoichiometry
Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are PvB and Pvw respectively. The partial pressure of benzene in air-vapour mixture is

XB.PvB

(Patm - Pvw)xB

XB.Patm

PvB

XB.PvB

(Patm - Pvw)xB

XB.Patm

PvB

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Stoichiometry
The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is __________ kg mole.

16

44

1

16

44

1

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Stoichiometry
Kinematic viscosity of 1 m² /second is equivalent to __________ stokes.

104

10

103

102

104

10

103

102

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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 latent heat of condensation (kJ/kg⁻¹ ) under these conditions is

2263

40732

2676

540

2263

40732

2676

540

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Stoichiometry
The rate of material __________ is zero in case of a steady state system.

Input

Generation

Production

Accumulation

Input

Generation

Production

Accumulation

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Stoichiometry
On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes

1

4

8

2

1

4

8

2

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