Chapter 2, Problem 2E.5E

(a)

Interpretation Introduction

Interpretation:

The heat that must be transferred to evaporate $1.00kg$ of water at ${25}^{o}C$ has to be calculated.

Concept Introduction:

The standard enthalpy of ionization ${\Delta }_{ion}{H}^o$ is the standard molar enthalpy change accompanying the removal of an electron from gas-phase or ion. The successive molar enthalpy changed is called first, second ionization enthalpy respectively.

The energy supplied as heat is given by

$q=n{C}_m\Delta T$

(b)

Interpretation Introduction

Interpretation:

The heat that must be transferred to evaporate $1.00kg$ of water at ${100}^{o}C$ has to be calculated.

Concept Introduction:

The standard enthalpy of ionization ${\Delta }_{ion}{H}^o$ is the standard molar enthalpy change accompanying the removal of an electron from a gas-phase or ion. The successive molar enthalpy changed is called first, second ionization enthalpy respectively.

The energy supplied as heat is given by

$q=n{C}_m\Delta T$