Chemical Process Calculation Questions and Answer

Terminology

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Which one is an example of _______ phase.
Solid
Liquid
Gas
All of the mentioned
Explanation:
All Solid, Liquid and Gas are the example of a phase.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
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
Marks : +2 | -2
Pass Ratio : 100%
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 4
Marks : +2 | -2
Pass Ratio : 100%
A system in which the temperature is invariant during a process is
Adiabatic system
Isobaric system
Isochoric system
Isothermal system
Explanation:
A system in which the temperature is invariant during a process is an Isothermal system.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Heat transfer is caused by
Pressure difference
Temperature difference
Volume difference
None of the mentioned
Explanation:
Heat transfer is caused by Temperature difference.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Everything outside a system boundary is
Surrounding
Boundary line
Open system
Closed system
Explanation:
Everything outside a system boundary is Surrounding.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
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 8
Marks : +2 | -2
Pass Ratio : 100%
A system that is not in steady state is in a state that is
Transient state
Unsteady state
Both a and b
Neither a nor b
Explanation:
A system that is not in steady state is in a state that is Transient state or Unsteady state.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
A boundary may be movable. The statement is
True
False
Imaginary
None of the mentioned
Explanation:
A boundary may be movable and rigid as well.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Heat is ___________ when transferred to a system.
Positive
Negative
Zero
None of the mentioned
Explanation:
Heat is Positive when transferred to a system.