Chemical Process Calculation

Ideal Gas

Question 1
Marks : +2 | -2
Pass Ratio : 100%
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 2
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Pass Ratio : 100%
A compound may consists of _______ phase.
Only one
Only two
Not more than two
One or more than one
Explanation:
A compound may consists of one or more than one phase.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
For an ideal gas, the specific molar volume of the gas is doubled then the pressure would be (Other parameters are same)
Same as before
Double
Half
None of the mentioned
Explanation:
Pressure and specific volumes are inversely proportional.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
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 5
Marks : +2 | -2
Pass Ratio : 100%
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 6
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Mercury and water (Immiscible) in a same container would represent two different phases.
Correct
Incorrect
Can`t say
None of the mentioned
Explanation:
A compound may consists of one or more than one phase.
Question 7
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For the universal gas constant, (cm3)(atm)/(K)(g mole) is an appropriate unit.
Correct
Incorrect
Can`t say
None of the mentioned
Explanation:
Gas constant = R = PV/nT.
Question 8
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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 9
Marks : +2 | -2
Pass Ratio : 100%
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 10
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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).