Chemical Process Calculation Questions and Answers – Heat Capacity

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

1. The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume is
a) Cv
b) Cp
c) Latent heat
d) none of the mentioned
View Answer

Answer: a
Explanation: The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume is Cv.

2. The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant pressure is
a) Cv
b) Cp
c) Latent heat
d) none of the mentioned
View Answer

Answer: b
Explanation: The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant pressure is Cv.

3. Which one of correct relation ?
a) Cp + Cv = 0
b) Cp = 1 + R/Cv
c) 1 = Cp/Cv
d) Cp = R + Cv
View Answer

Answer: d
Explanation: Cp = R + Cv.
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4. The heat capacity depends on whether the heat is added at constant __________ or constant ________
a) Volume, Temperature
b) Pressure, Volume
c) Pressure, Temperature
d) Temperature, Pressure
View Answer

Answer: b
Explanation: The heat capacity depends on whether the heat is added at constant Pressure or constant Volume.

5. measurement of Cp is _______ than Cv.
a) Safer
b) Dangerous
c) Can`t say
d) None of the mentioned
View Answer

Answer: a
Explanation: Heat capacity measurements at constant volume are dangerous because the container can explode.
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6. For an mono atomic ideal gas Cv is
a) 1.5 R
b) 2.5 R
c) 3.5 R
d) 4.5 R
View Answer

Answer: a
Explanation: For a mono atomic gas Cv = 1.5 R.

7. For a diatomic gas, Cv is
a) 1.5 R
b) 2.5 R
c) 3.5 R
d) 4.5 R
View Answer

Answer: b
Explanation: For a diatomic gas Cv = 2.5 R.
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8. For an ideal mono atomic gas
a) Cp = Cv + 1.5 R
b) Cp = Cv + R
c) Cp = Cv – 1.5 R
d) Cp = Cv – R
View Answer

Answer: b
Explanation: For an ideal gas: Cp = Cv + R.

9. Consider He gas an ideal gas, What is Cv for He?
a) 1.5 R
b) 2.5 R
c) 3.5 R
d) 4.5 R
View Answer

Answer: a
Explanation: For a diatomic gas Cv = 2.5 R.
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10. Consider N2 gas an ideal gas, What is Cv for N2?
a) 1.5 R
b) 2.5 R
c) 3.5 R
d) 4.5 R
View Answer

Answer: b
Explanation: For a diatomic gas Cv = 2.5 R.

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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