Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m³ . The diffusivity of aniline in air is 0.74xl0-5m²/s.The numerical value of mass transfer co-efficient is 7.4 x 10-3. Its units are

Stoichiometry
Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m³ . The diffusivity of aniline in air is 0.74xl0-5m²/s.The numerical value of mass transfer co-efficient is 7.4 x 10-3. Its units are

Cm/s

Kmole/m².s.Pa

Mole/m².s.Pa

M/s

Cm/s

Kmole/m².s.Pa

Mole/m².s.Pa

M/s

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Stoichiometry
The density of a gas at N.T.P.is 'ρ'. Keeping the pressure constant (i.e. 760 mm Hg), the 3 density of the gas will become ¾ 0.75ρ at a temperature of __________ °K

300°

400°

273°

300°

400°

273°

300°

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Stoichiometry
1 Kcal/kg. °C is equivalent to __________ BTU/lb. °F.

None of these

1

4.97

2.42

None of these

1

4.97

2.42

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Stoichiometry
The number of atoms of oxygen present in 11.2 litres of ozone (O₃) at N.T.P. are

6.02 x 10²³

1.20 x 10²⁴

9.03 x 10²⁴

3.01 x 10²²

6.02 x 10²³

1.20 x 10²⁴

9.03 x 10²⁴

3.01 x 10²²

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Stoichiometry
In a binary liquid solution of components A and B, if component A exhibits positive deviation from Raoult's law, then component B

Exhibits positive deviation from Raoult's law

Obeys Raoult's law

May exhibit either positive or negative deviation from Raoult's law

Exhibits negative deviation from Raoult's law

Exhibits positive deviation from Raoult's law

Obeys Raoult's law

May exhibit either positive or negative deviation from Raoult's law

Exhibits negative deviation from Raoult's law

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Stoichiometry
For the gaseous phase reaction, N₂ + O₂ ⇋ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by

Increasing the concentration of N₂

Increase in pressure

Decrease in temperature

Decrease in pressure

Increasing the concentration of N₂

Increase in pressure

Decrease in temperature

Decrease in pressure

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Stoichiometry

Stoichiometry The density of a gas at N.T.P.is 'ρ'. Keeping the pressure constant (i.e. 760 mm Hg), the 3 density of the gas will become ¾ 0.75ρ at a temperature of __________ °K

Stoichiometry 1 Kcal/kg. °C is equivalent to __________ BTU/lb. °F.

Stoichiometry The number of atoms of oxygen present in 11.2 litres of ozone (O₃) at N.T.P. are

Stoichiometry In a binary liquid solution of components A and B, if component A exhibits positive deviation from Raoult's law, then component B

Stoichiometry For the gaseous phase reaction, N₂ + O₂ ⇋ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by

Stoichiometry
The density of a gas at N.T.P.is 'ρ'. Keeping the pressure constant (i.e. 760 mm Hg), the 3 density of the gas will become ¾ 0.75ρ at a temperature of __________ °K

Stoichiometry
1 Kcal/kg. °C is equivalent to __________ BTU/lb. °F.

Stoichiometry
The number of atoms of oxygen present in 11.2 litres of ozone (O₃) at N.T.P. are

Stoichiometry
In a binary liquid solution of components A and B, if component A exhibits positive deviation from Raoult's law, then component B

Stoichiometry
For the gaseous phase reaction, N₂ + O₂ ⇋ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by