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Stoichiometry

Stoichiometry
__________ equation relates latent heat and boiling point.

Kistyakowsky
Trouton's
Kopp's
Antonie

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Stoichiometry
A butane isomerisation process produces 70 kmole/hr of pure isobutane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be

5 kmole/hr
4 kmole/hr
3 kmole/hr
6 kmole/hr

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Stoichiometry
A sugar solution containing __________ percent sugar is equivalent to 1 Brix.

10
1
0.01
0.1

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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

Mole/m².s.Pa
M/s
Cm/s
Kmole/m².s.Pa

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Stoichiometry
The atomic heat capacities of all solid elements __________ with decrease in temperature.

Increases
Approach zero at 0°C
Remains unchanged
Decreases

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Stoichiometry
S.T.P. corresponds to

760 mm Hg gauge pressure & 15.5°C
1 atm. absolute pressure & 15.5°C
101.325 kPa gauge pressure & 15.5°C
760 torr & 0°C

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