Chemical Process Calculation Questions and Answers – Vaporization

This set of Chemical Process Calculation Multiple Choice Questions & Answers (MCQs) focuses on “Vaporization”.

1. In a vaporization process __________ changes to _________
a) Vapor, liquid
b) Vapor, solid
c) Solid, Vapor
d) Liquid, Vapor
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2. Vaporization starts at __________ point.
a) Dew point
b) Bubble point
c) Triple point
d) None of the mentioned
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3. Heating a liquid at constant pressure can definitely cause____________
a) Vaporization
b) Condensation
c) Boiling
d) None of the mentioned
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4. Vaporization temperature of water at standard conditions is _______________ Degree Celsius.
a) 100
b) 200
c) 300
d) 400
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5. Amount of water vapor in the air increases as the dew point temperature ______________
a) Increases
b) Decreases
c) Remains same
d) None of the mentioned
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6. When the air temperature rises, the saturation vapor pressure
a) Increases
b) Decreases
c) Remains same
d) None of the mentioned
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7. When the air temperature rises the saturation mixing ratio
a) Increases
b) Decreases
c) Remains same
d) None of the mentioned
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8. Most heat energy is required in the following process?
a) Sublimation
b) Evaporation
c) Condensation
d) None of the mentioned
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9. The fraction of water vapor at 300 K and 8 atm is 0.8. Calculate the fraction of water vapor at the same temperature and 1 atm pressure?
a) 0.1
b) 0.2
c) 0.3
d) 0.4
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10. What is the fraction of water vapor at 300 K and 1 atm, if the fraction of water vapor at the same pressure is 0.8 and temperature is 400 K?
a) 0.2
b) 0.4
c) 0.6
d) 0.8
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Sanfoundry Global Education & Learning Series – Chemical Process Calculation.
To practice all areas of Chemical Process Calculation, here is complete set of 1000+ Multiple Choice Questions and Answers.

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