First slide

Gaseous state

Question

The density of neon will be minimum at

Moderate

A

STP
B

$0^{\circ} C, 2 atm$
C

$273^{\circ} C, 1 atm$
D

$273^{\circ} C, 2 atm$

Solution

$d= \frac{p m}{R T}, d \propto \frac{p}{T}$
$(a) d \propto \frac{1}{273} (b) d \propto \frac{2}{273} (c) d \propto \frac{1}{546} (least) (d) d \propto \frac{2}{546}$

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