Chemical Process Calculation

Ideal Gas

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Which one has the lowest density at room temperature?
Ne
N2
NH3
CO
Explanation:
NH3 have minimum molecular weight.
Question 2
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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 3
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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 4
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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 5
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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 6
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Usually while measuring the specific gravity of a gas, the reference gas that is taken is air.
False
True
Depends on the gas
None of the mentioned
Explanation:
Air is usually taken at the same temperature and pressure.
Question 7
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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 8
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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 9
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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).
Question 10
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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.