Chapter 12, Problem 66AE

Interpretation Introduction

Interpretation:

Greatest density in choices below has to be determined.

(a) ${\text{SF}}_6$ gas at STP.

(b) ${\text{C}}_{\text{2}}{\text{H}}_6$ gas at room conditions.

(c) $\text{He}$ gas at $2.15\text{ atm}$ and $-80°\text{C}$.

Concept Introduction:

Ideal gas law represents an equation to relate its volume and pressure with its temperature. Expression for ideal gas equation is as follows:

  $PV=nRT$        (1)

Here,

$P$ is pressure of the gas.

$V$ is volume of gas.

$n$ denotes moles of gas.

$R$ is gas constant.

$T$ is temperature of gas.

Density of gas represents mass of gas present in unit volume. Expression of density is as follows:

  $d\left(\text{g/L}\right)=\frac{\text{mass}\left(\text{g}\right)}{\text{volume}\left(\text{L}\right)}$

Here, $d$ is density of gas.