. Maximum deviation from ideal gas is expected from


(a)  CH4(g)
(b)  NH3(g)
(c)  H2(g)
(d)  N2(g)

Best Answer

Correct Option is : (b)

The deviations from ideal gas depend on polarity of the gas and molar mass(more polar gas will show more deviation) considering the temperature and pressure.

Considering the given 4 options (hydrogen, ammonia, methane and nitrogen), AMMONIA is the one which shows bigger deviation under the same conditions since it has maximum polarity among all. NH3 will show maximum deviation from ideal gas due more to dipole -dipole attractions which leads to more attractive forces between molecules of NH3.

 

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