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WorksheetsStates of matter
Total questions: 20
Worksheet time: 40mins
Among the following , which one has lowest root mean square velocity at 25 ⁰C
SO2
N2
O2
Cl2
Helium is twice as heavy as Hydrogen . At 25⁰C the average K.E of helium is
Twice as hydrogen
Same as hydrogen
Four times as hydrogen
Half of hydrogen
The correct increasing order of effusion is
H2 , CO2 , NH3 , O2
H2 ,. NH3. , O2 ,. CO2
H2 , O2 , NH3 , CO2
CO2 , O2 , NH3. , H2
Four particles have speed 2, 3, 4 and 5 cm/s respectively . Then the RMS speed is
3.5 cm/s
13.5 cm/s
√54 cm/s
√54 / 2 cm/s
Which one of these has highest critical temperature?
tap on the image for full screen
W
X
Y
Z
Which of the following pairs has same rate of diffusion
NO , CO
NO , CO2
NH3 . PH3
NO , C2H6
The compressibility factor of a gas is less than unity at STP , therefore
V > 22.4
V < 22.4
V = 22.4
V = 44.8
The partial pressure of H2 in a flask containing 2 g of H2 and 32 g of SO2 is
1/16 of total pressure
1/2 of total pressure
2/3 of total pressure
1/8 of total pressure
For a given massof gas, if pressure is reduced to half and temperature is increased two times , then the volume would become
V/4
2V²
6V
4V
Boyle's law is applicable to
Isobaric
Isochoric
Isothermal
Adiabatic
For a fixed mass of gas at constant pressure,which of the following is correct?
Plot of volume vs celsius temperature is linear with zero intercept
Plot of volume vs Kelvin temperature is linear with a non zero intercept
Plot of V/T vs temperature is linear with a positive slope
Plot of V/T. vs temperature is linear with a zero slope
If the density of gas 'A' is 1.5 times that of B then the molecular mass of A is M . The molecular mass of B is
1.5 M
M/1.5
3M
M/3
The vapour densities of methane and oxygen are in ratio 1:2 , the ratio of rates of diffusion of oxygen and methane at same conditions is
...
1 : 2
2 : 1
1 : 1.41
1 : 4.14
A gas 'A' having molecular weight 4 diffuses thrice as fast as the gas B . The molecular weight of gas B is
36
12
18
24
Conclusion from the image is
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P1 > P2
P1 < P2
P1 = P2
All
Which of the following has lowest average speed at 273 K
CO
CH4
CO2
C2 H6
Rate of diffusion of He with respect to methane at same temperature and pressure is
1/2
2
4
1
An ideal gas will have maximum density at
0.5 atm and 600K
2 atm and 150 K
1 atm and 300 K
0.5 atm and 500 K
Kinetic energy of a gas depends upon
Molecular mass
Equivalent mass
Surface area
None of these
The temperature at which RMS velocity of SO2 gas is double the RMS velocity of O2 gas at 27 ⁰C
300 ⁰C
2127 ⁰C
2271 ⁰C
600 ⁰C
