1.
The rate of diffusion of methane at a given temperature is twice that of a gas X. The molecular weight of X is:
2.
The density of neon will be highest at:
3.
A perfect gas of a given mass is heated first in a small vessel and then in a large vessel, such that their volume remains unchanged. The P-T curves are:
4.
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5.
An ideal gas expands according to PV = constant. On expansion, the temperature of gas:
6.
A gas is heated from 0°C to 100° at 1.0 atm pressure. If the initial volume of the gas is 10 liter, its final volume would be:
7.
At27°C, the ratio of root mean square speeds of ozone to oxygen is :
8.
consider an ideal gas contained in a vessel. If the intermolecular interactions suddenly begins to act, which of the following will happen?
9.
The root mean square speed of the molecules of diatomic gas is u. When the temperature is doubled, the molecules dissociates into two atoms . The new rms speed of the atom is:
10.
At constant volume, for a fixed number of mole of a gas, the pressure of the gas increases with rise of temperature due to :
11.
Which contaions the same number of molecules as 16 g of oxygen
12.
The compressibility of a gas is less than unity at STP. Therefore:
13.
A gas behaves most like an ideal gas under conditions of:
14.
Assume that air is 21% oxygen and 79% nitrogen by volume. If the barometric pressure is 740 mm, the partial pressure of oxygen is closest to which one of the following
15.
4.0 g argon has pressure P and temperature T K in a vessel. On keeping the vessel at 50^∘higher temperature,0.8 g of argon was given out to maintain the pressure P. The original temperature was:
16.
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17.
The compressibility factor of a gas is defined as Z=PV∕nRT. The compressibility factor of an ideal gas is :
18.
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19.
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20.
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