Chemical Process Calculation Questions and Answer

Terminology

Question 1
Marks : +2 | -2
Pass Ratio : 100%
The surface that separates a system from the surrounding is called
Boundary
Surface
Surrounding
None of the mentioned
Explanation:
The surface that separates a system from the surrounding is called Boundary.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
If the accumulation in a system is zero, the state of the system is
Transition state
Steady state
Unsteady state
None of the mentioned
Explanation:
If the accumulation in a system is zero, the state of the system is Steady state.
Question 3
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.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Heat is negative when transferred to the _____________
System
Surrounding
Boundary
None of the mentioned
Explanation:
Heat is negative when transferred to the surrounding .
Question 5
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 6
Marks : +2 | -2
Pass Ratio : 100%
For an adiabatic system, two statements are given as following
Only I is correct
Only II is correct
Both I & II are correct
Neither I nor II correct
Explanation:
Both I and II are the properties of an Adiabatic system.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
Any variable whose value depends only on the state of the system is called
Path variable
State variable
Neither Path nor State variable
None of the mentioned
Explanation:
A State variable is any variable whose value depends only on the state, not on the previous history.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
The properties of a system are invariant in a state, called
Transition state
Steady state
Unsteady state
None of the mentioned
Explanation:
The properties of a system are invariant in a state, that is called Steady state.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
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 10
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.