Chapter 6, Problem 6.118SP

Interpretation Introduction

Interpretation:

$\left(\text{ΔH-ΔU}\right)$ for the conversion of one mole of graphite to one mole of diamond at pressure of $\text{50,000}\text{atm}$ has to be calculated.

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