Chapter 4, Problem 4.18P

Interpretation Introduction

Interpretation:

The heat of formation for acetylene liquid at 298K should be calculated.

Concept Introduction:

Riedel equation is as follows:

  $\frac{\Delta H_n}{R{T}_n}=\frac{1.092(\ln P_c-1.013)}{0.930-T_{rn}}$

And,

Watson correction is represented as follows:

  $\Delta H_v=\Delta H_n\times {\left(\frac{1-T_r}{1-T_{rn}}\right)}^{0.38}$

Here,

  $T_{rn}=\frac{T_n}{T_c}$ and $P_r=\frac{P}{P_c}$

  $T_n$ =Normal boiling point

  $T_c$ = Critical Temperature

  $P_c$ = Critical Pressure

  $\Delta H_n$ = Latent heat of vaporization