Chapter 4, Problem 4.36P

Interpretation Introduction

Interpretation:

To find the quantity of heat added to the reactor per mole of product gas.

Concept Introduction:

The Enthalpy change of product stream is given as

$\Delta H_P=R\times ICPH(T,T_0,A,B,C,D)$

Where

$ICPH(T,T_0,A,B,C,D)=A.T_0(\tau -1)+\frac{B}{2}{T}_0^2({\tau }^2-1)+\frac{C}{3}{T}_0^3({\tau }^3-1)+\frac{D}{T_0}(\frac{\tau -1}{\tau })$

A,B,C,D are constants

T₀ = Initial temperature

T = Final temperature

R = Universal Gas Constant = 8.314 J/mol K

$\tau =\frac{T}{T_O}$

$\Delta H_R$ = Change of enthalpy of Reactants stream

$\Delta H_{298}$ = Standard enthalpy at 298K

$\Delta H_P$ = Change of enthalpy of Products stream

Total change in enthalpy = $\Delta H$

Heat transferred = Q

$Q=(\Delta H_R+\Delta H_{298}+\Delta H_P)$