Chapter 3, Problem 3.23E

(a)

Interpretation Introduction

Interpretation:

Mass of sodium azide required to produce nitrogen to fill air bag has to be determined.

Concept Introduction:

Ideal gas law can be represented as equation for state for any imaginary gas. 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.

(b)

Interpretation Introduction

Interpretation:

Value of $v_{\text{rms}}$ for nitrogen formed has to be determined.

Concept Introduction:

It is denoted by $v_{\text{rms}}$. The expression for $v_{\text{rms}}$ is as follows:

  $v_{\text{rms}}=\sqrt{\frac{3RT}{M}}$        (3)

Here,

$R$ is gas constant.

$T$ is absolute temperature of gas.

$M$ is molecular weight of gas.