Question

The density of neon will be minimum at

• A. STP
• B. 0$^\circ$C, 2 atm
• C. 273$^\circ$C, 1 atm
• D. 273$^\circ$C, 2 atm

Answer 1

Answer: (C)

273$^\circ$C, 1 atm

Answer 2

PV = nRT
PV = $\frac{w}{M} \, RT$
$\frac{PM}{RT}$ = d
(A) d = $\frac{1 \, atm \times M}{R \times 273 \, K}$
(B) d = $\frac{2 \, atm \times M}{R \times 273 \, K}$
(C) d = $\frac{1 \, atm \times M}{R \times 546 \, K}$
(D) d = $\frac{2 \, atm \times M}{R \times 546 \, K}$
$d$ will be minimum when numerator is minimum and denominator is maximum. Thus, (C) is the correct choice for the answer.