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  4. The density of methane at 2.0 atm pressure and 27° C is

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Q. The density of methane at $2.0\, atm$ pressure and $27^{\circ} C$ is

States of Matter

Solution:

We know, $P M=d R T$

$P=2\, atm , R=0.0821\, L\, atm\, K ^{-1} mol ^{-1}, T=27^{\circ} C =300\, K$

$d=\frac{2 \times 16}{0.0821 \times 300}=1.3\, g / L$