Chemical Process Calculation Questions and Answers – Condensation

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

1. ________ is the change of vapour in a non-condensable gas.
a) Saturation
b) Vaporization
c) Condensation
d) None of the mentioned
View Answer

Answer: c
Explanation: Condensation is the change of vapour in a non-condensable gas.

2. In a condensation process, _______ to _________
a) Gas, Solid
b) Gas, Liquid
c) Liquid, Gas
d) Liquid, Solid
View Answer

Answer: b
Explanation: In a condensation process, Gas to Liquid.

3. When vapour is cooled at constant total system volume, the _______ changes.
a) Volume
b) Pressure
c) Temperature
d) None of the mentioned
View Answer

Answer: b
Explanation: When vapour is cooled at constant total system volume, the pressure changes.

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4. When vapour is compressed isothermally the ____________ changes.
a) Volume
b) Pressure
c) Temperature
d) None of the mentioned
View Answer

Answer: a
Explanation: When vapour is compressed isothermally the volume changes.

5. Condensation starts ________ point.
a) Dew point
b) Bubble point
c) Triple point
d) None of the mentioned
View Answer

Answer: a
Explanation: Condensation starts Dew point.
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6. When gas changes to liquid through the process of condensation, the temperature
a) Increases
b) Decreases
c) Remains constant
d) None of the mentioned
View Answer

Answer: c
Explanation: Temperature is constant during condensation.

7. When the vapour is condensed at constant system pressure, the pressure changes.
a) Correct statement
b) Incorrect statement
c) Can`t say anything
d) None of the mentioned
View Answer

Answer: a
Explanation: When the vapour is condensed at constant system pressure, the pressure changes.

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8. If the fraction of water vapour at 127 Degree Celsius and 1 atm is 0.5, what is the fraction of water vapour at 27 Degree C and 1 atm?
a) 0.275
b) 0.375
c) 0.475
d) 0.875
View Answer

Answer: b
Explanation: Fraction = 0.5*300/400 = 0.375.

9. Leonard set up the experiment shown below.
Leonard set up experiment
9. Correct statement is/are
A: Steam is formed when water boils.
B: water vapour loses heat during condensation.
a) Both A and B
b) Neither A nor B
c) Only A
d) Only B
View Answer

Answer: a
Explanation: Boiling of water forms steam and due to heat loss condensation is occurring.

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10. Water changes into water vapour only when boiling occurs. The statement is
a) Correct
b) Incorrect
c) Always correct
d) None of the mentioned
View Answer

Answer: b
Explanation: In other operation as well water result in vapour.

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.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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