1.
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2.
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3.
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4.
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5.
If a gas expands at constant temperature, it indicates that :
6.
A gas such as carbon monoxide would be most likely to obey the ideal gas law at:
7.
A bubble of air is underwater at temperature 15°C and the pressure 1.5 bar. If the bubble rises to the surface where the temperature is 25°C and the pressure is 1.0 bar, what will happen to the volume of the bubble?
8.
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9.
Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be:
10.
The surface tension of which of the following liquid is maximum ?
11.
50 mL of each gas A and of gas B takes 150 and 200 seconds respectively for effusing through a pin hole under the similar condition. If molecular mass of gas B is 36, the molecular mass of gas A will be
12.
Equal moles of hydrogen and oxygen gases are placed in container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape?
13.
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14.
By what factor does the average velocity of a gaseous molecule increase when the temperature (in Kelvin) is doubled?
15.
A certain gas takes three times as long to effuse out as helium. Its molar mass will be:
16.
van der Waals' real gas, act as an ideal gas at which conditions ?
17.
Maximum deviation from ideal gas is expected from :
18.
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19.
Two gases A and B having the same volume diffuse through a porous partition in 20 and 10 seconds respectively. The molar mass of A is 49 u. Molar mass of B will be :
20.
Dipole-induced dipole interactions are present in which of the following pairs:
