Chemical Process Calculation Questions and Answer

Terminology

Question 1
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A system that does not interchange mass with the surrounding is a _____________
Open System
Closed System
Bounded System
None of the mentioned
Explanation:
A system that does not interchange mass with the surrounding is a Closed System.
Question 2
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Adiabatic system is a perfectly insulated system. The statement is
True
False
Applicable for some systems
None of the mentioned
Explanation:
Adiabatic system is a perfectly insulated system.
Question 3
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The quantity of matter or region of space chosen for study is called
Boundary
Surrounding
System
None of the mentioned
Explanation:
The quantity of matter or region of space chosen for study is called System.
Question 4
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A system in which the volume is invariant during a process is
Adiabatic system
Isobaric system
Isochoric system
Isothermal system
Explanation:
A system in which the volume is invariant during a process is an Isochoric system.
Question 5
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Density of a material is an
Extensive property
Intensive property
Neither Intensive nor Extensive
None of the mentioned
Explanation:
Density of a material doesn`t depend on the mass. It is equal for each amount of a specific material.
Question 6
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Volume of a system is
Intensive property
Extensive property
Neither intensive nor Extensive
None of the mentioned
Explanation:
Volume of a system depends on the amount of it present in the system.
Question 7
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Observable characteristic of a system is called
Phase
Property
State
None of the mentioned
Explanation:
Observable characteristic of a system is called Property.
Question 8
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Which one is a state variable ?
Internal Energy
Enthalpy
Entropy
All of the mentioned
Explanation:
All a, b, c are state variables as these are only depended only on the state, not on the history.
Question 9
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The properties of a system remain invariant under a balance of potential, is
Equilibrium
Phase transition
Transient phase
None of the mentioned
Explanation:
The properties of a system remain invariant under a balance of potential, is Equilibrium.
Question 10
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Pass Ratio : 100%
The following is not a type of equilibrium
Mechanical equilibrium
Thermal equilibrium
Chemical equilibrium
None of the mentioned
Explanation:
Mechanical, Chemical and Thermal all are the types of equilibrium.