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SET-1
1.
At constant temperature if the pressure decreases, then the volume of a given mass of gas will
A.
Decreases
B.
May increases or decreases depending on nature of the gas
C.
Increases
D.
Remain constant
Answer :
Answer & Solution
2.
On average, air contains _________% of water vapour
A.
1
B.
3
C.
5
D.
7
Answer :
Answer & Solution
3.
Equal volumes of different gases at any definite temperature and pressure have
A.
Equal masses
B.
Equal number of molecules
C.
Equal weights
D.
Equal density
Answer :
Answer & Solution
4.
The volume of a vessel containing an ideal gas is doubled and its temperature(in °K) is also doubled. The pressure of the gas
A.
Is doubled
B.
Is four times the original pressure
C.
Remains unchanged
D.
In one-fourth of the original pressure
Answer :
Answer & Solution
5.
Which set of condition represents easiest way to liquify a gas
A.
Low temperature and low pressure
B.
High temperature and high pressure
C.
Low temperature and high pressure
D.
Low temperature and low pressure
Answer :
Answer & Solution
6.
The most abundant rare gas in the atmosphere is
A.
Neon
B.
Xenon
C.
Helium
D.
Argon
Answer :
Answer & Solution
7.
The process by which the gas comes out of an L.P.G cylinder is called
A.
Effusion
B.
Ventilation
C.
Diffusion
D.
Pressure
Answer :
Answer & Solution
8.
The expression of average speed of gaseous molecule is
A.
√2RT/M
B.
√8KT/M
C.
√3RT/M
D.
√8RT/ πM
Answer :
Answer & Solution
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