Question

Density of nitrogen is maximum at
(A) STP
(B) 273K and 2 atm
(C) 546K and 1 atm
(D) 273K and 4 atm

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Answer 1

I think the answer is bit D)

Answer 2

Density of nitrogen is maximum at 273K and 4 atm.

Option (D)

Explanation:

• We know that According to the ideal gas equation

• PV= nRT. And derived from that after adding Avogadro’s equation,      we get

• $D=\frac{P \times M}{R \times T}$ (where all variables mean their normal values)

• Hence, $D \propto \frac{P}{T}$.

• That is the density is directly proportional to the pressure divided by temperature.

• Hence out all the options 273K and 4 atm has the highest pressure to temperature ratio thus has the highest density.

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