Chapter 6, Problem 6.148QP

Interpretation Introduction

Interpretation:

The reason why for most biological process $\text{ΔH}\approx \text{ΔU}$ has to be explained.

Concept Introduction:

At constant pressure, the exchange of heat between the system and surroundings is called as Enthalpy and its state function.

Enthalpy can be given by the formula,

$\begin{array}{l}\text{H}\text{=}\text{U+PV}\\ \\ \text{ΔH}\text{=}\text{ΔU+PΔV}\\ \\ \text{ΔH-ΔU}\text{=}\text{PΔV}\end{array}$

Where, H=enthalpy

U=internal energy

P=Pressure

V=Volume