Chemical Process Calculation Questions and Answers – Degrees of Freedom – I

This set of Chemical Process Calculation Multiple Choice Questions & Answers (MCQs) focuses on “Degrees of Freedom – I”.

1. The number of degrees of freedom is the number of variables in a set of independent equations to which values must be assigned so that the equations can be solved.
The above given statement is
a) True
b) False
c) Can`t say
d) None of the mentioned
View Answer

Answer: a
Explanation: The number of degrees of freedom is the number of variables in a set of independent equations to which values must be assigned so that the equations can be solved.

2-3. For degrees of freedom (Nd) expression, Nd = Nv – Ne
2. Nv represents
a) Number of variables
b) Number of equations
c) Number of free variables
d) None of the mentioned
View Answer

Answer: a
Explanation: Nv is the number of the variables.

3. Ne represents
a) Number of variables
b) Number of equations
c) Number of free variables
d) None of the mentioned
View Answer

Answer: b
Explanation: Ne is the number of the equations.
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4. ______________variables are included in the analysis in contrast with the degrees of freedom.
a) Intensive
b) Extensive
c) Both Extensive and Intensive
d) None of the mentioned
View Answer

Answer: c
Explanation: Intensive variables are included in the analysis in contrast with the degrees of freedom.

5. Gibbs phase rule for general system is
a) P+F=C-1
b) P+F=C+1
c) P+F=C-2
d) P+F=C+2
View Answer

Answer: d
Explanation: Gibbs phase rule for general system is, P+F=C+2.

6. The degree of freedom is zero for a single-component condensed system. What is the maximum number of phases that can co-exist?
a) 0
b) 1
c) 2
d) 3
View Answer

Answer: c
Explanation: Gibbs phase, P+F=C+2.

7. The degree of freedom at triple point in unary diagram for water zero.
The above give statement is
a) Correct
b) Incorrect
c) Partially correct
d) None of the mentioned
View Answer

Answer: a
Explanation: Gibbs phase rule, P+F=C+2.
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8. A rigid body possesses ______________ degrees of freedom.
a) One
b) Two
c) Four
d) Six
View Answer

Answer: d
Explanation: It can have motion in six directions.

9. What is the degree of freedom for given sequence?
x = 3, 7, 4, 6, 9, 7, 2
a) One
b) Two
c) Four
d) Six
View Answer

Answer: d
Explanation: DF = n-1.
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10. What is the degree of freedom for given sequence?
x = 16,15,18,13, 14, 46, 82
y = 22,21,19,16
a) One
b) Two
c) Four
d) Six
View Answer

Answer: a
Explanation: DF = n1-n2-2.

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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