Chemical Process Calculation Multiple Choice Questions & Answers (MCQs) focuses on “Energy Balances – Terminology – III”.
1. Everything outside a system boundary is
a) Surrounding
b) Boundary line
c) Open system
d) Closed system
Answer: a
Clarification: Everything outside a system boundary is Surrounding.
2. The quantity of matter or region of space chosen for study is called
a) Boundary
b) Surrounding
c) System
d) None of the mentioned
Answer: c
Clarification: The quantity of matter or region of space chosen for study is called System.
3. System is enclosed by
a) Boundary
b) Surrounding
c) Layers
d) None of the mentioned
Answer: a
Clarification: A system is enclosed by Boundary.
4. A system that is not in steady state is in a state that is
a) Transient state
b) Unsteady state
c) Both a and b
d) Neither a nor b
Answer: c
Clarification: A system that is not in steady state is in a state that is Transient state or Unsteady state.
5. Unsteady state is also known as Transient state, the statement is
a) True
b) False
c) Applicable for some systems
d) None of the mentioned
Answer: a
Clarification: Unsteady state is also known as Transient state.
6. A system that does not exchange heat with the surroundings during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system
Answer: a
Clarification: A system that does not exchange heat with the surroundings during a process is Adiabatic system.
7. Adiabatic system is a perfectly insulated system. The statement is
a) True
b) False
c) Applicable for some systems
d) None of the mentioned
Answer: a
Clarification: Adiabatic system is a perfectly insulated system.
8. A system in which the pressure is constant during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system
Answer: b
Clarification: A system in which the pressure is constant during a process is an Isobaric system.
9. A system in which the volume is invariant during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system
Answer: c
Clarification: A system in which the volume is invariant during a process is an Isochoric system.
10. A system in which the temperature is invariant during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system
Answer: d
Clarification: A system in which the temperature is invariant during a process is an Isothermal system.