Chemical Process Calculation

Ideal Gas

Question 1
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Pass Ratio : 100%
The inverse of molar volume is
Molar density
Mole fraction
Molar specific volume
None of the mentioned
Explanation:
The inverse of molar volume is Molar density (V/n).
Question 2
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___________is any measurable characteristics of a substance that can be calculated or deduced.
Property
State
Phase
None of the mentioned
Explanation:
Property is any measurable characteristics of a substance that can be calculated or deduced.
Question 3
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Incorrect equation for an ideal is
PV = nRT
Pv = RT
PM = ρRT
None of the mentioned
Explanation:
All three are correct as a & b are ideal gas law and c is in the form of density.
Question 4
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At constant temperature the pressure of an ideal gas is doubled its density becomes
Half
Double
Same
None
Explanation:
Density is proportional to pressure.
Question 5
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What is the density of Carbon-di-oxide in kg/m3 at 27 degree celcius and 100 KPa?
1.76
2.76
3.76
4.76
Explanation:
density = (Pressure*Molecular weight)/(Gas constant*Temperature).
Question 6
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For an ideal gas, incorrect statement is
Molecules do not occupy any space
No attractive force exist between the molecules
The gas molecules move in random, straight line motion
None of the mentioned
Explanation:
Conditions for a gas to behave as predicated by the ideal gas law.
Question 7
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At standard conditions, what is the volume of 1 kg mole of ideal gas?
22.4 m3
2240 m3
224000 m3
None of the mentioned
Explanation:
V = nRT/P.
Question 8
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What is the volume of 20 gms of Oxygen in Litre at standard conditions?
10
12
14
16
Explanation:
At standard conditions, 1 mole of of gas occupy 22.4 litre volume.
Question 9
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What is the volume of 2.5 gm moles Nitrogen gas at STP? At 100 KPa pressure and 300 K temperature, 2 gm moles of the gas occupy 20 cubic meter volume.
11.23
22.46
33.69
44.92
Explanation:
P1V1/n1T1 = P2V2/n2T2.
Question 10
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1 atm pressure and 0°C’ condition is known as
Room temperature and pressure
Standard temperature and pressure
Atmospheric temperature and pressure
None of the mentioned
Explanation:
1 atm pressure and 0°C condition is known as standard temperature and pressure (STP).