Chemical Process Calculation

Real gases

Question 1
Marks : +2 | -2
Pass Ratio : 100%
The set of physical conditions at which the density and other properties of a liquid and vapour become identical, is called
Corresponding state
Critical state
Equation of state
None of the mentioned
Explanation:
The set of physical conditions at which the density and other properties of a liquid and vapour become identical is known as Critical state.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
“Any compound should have the same reduced volume at the same reduced pressure and reduced temperature.” Is known as
Law of corresponding states
Law of critical state
Law of reduced state
None of the mentioned
Explanation:
Any compound should have the same reduced volume at the same reduced pressure and reduced temperature law of corresponding states.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
The summation of each of the partial pressure of the component in a system equals to the total pressure. Is
Dalton`s law
Boyle`s law
Charles`s Law
None of the mentioned
Explanation:
The summation of each of the partial pressure of the component in a system equals to the total pressure is Dalton`s law.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Critical point occurs at
Highest temperature and pressure at which gas and liquid can coexist
Lowest temperature and pressure at which gas and liquid can coexist
Highest temperature and lowest pressure at which gas and liquid can coexist
Lowest temperature and highest pressure at which gas and liquid can coexist
Explanation:
Critical point occurs at highest temperature and pressure.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
For the Van der Waals real gas equation
Both statements are false
Only one can be true at a time
Both statement are true
None of the mentioned
Explanation:
In the first statement, Specific molar volume is used and in second one, total volume. So for the given equation both statement can not be true at a time.
Question 6
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Pass Ratio : 100%
Compressibility factor z is
z = PV/RT
z = Pv/RT
z = PM/RT
z = PV/nT
Explanation:
z = Pv/RT.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
A parameter that indicates the degree of nonsphericity of a molecule is called
Compressibility factor
Acentric factor
Holburn factor
None of the mentioned
Explanation:
A parameter that indicates the degree of nonsphericity of a molecule is called Acentric factor.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
For an ideal gas, the compressibility factor is
0.5
1.0
1.5
2.0
Explanation:
z = Pv/RT = 1, for an ideal gas.
Question 9
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Pass Ratio : 100%
Material in a state above its critical point is
Critical fluid
Supercritical fluid
Plasma fluid
None of the mentioned
Explanation:
Material in a state above its critical point is called Supercritical fluid.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Corrected and normalized conditions of temperature, pressure and volume, normalized by their respective critical conditions is called
Reduced variables
Corresponding variables
Standard condition variables
None of the mentioned
Explanation:
Corrected and normalized conditions of temperature, pressure and volume, normalized by their respective critical conditions is called Reduced variables.