Chapter 17, Problem 88A

Interpretation Introduction

Interpretation: The given statement is true or false.

Concept Introduction: The standard enthalpy of formation is the amount of energy released or consumed when one mole of a substance is formed under standard conditions from its pure element. It is represented by the symbol $\Delta {\text{H}}^{\text{0}}{}_{\text{f}}$ .

Answer to Problem 88A

The given statement is True.

Explanation of Solution

The negative value of standard enthalpy of formation indicates that the compound formed is associated with less energy as compared to its constituents. Lower energy means more stability and vice versa.

More negative is the value of $\Delta {\text{H}}^{\text{0}}{}_{\text{f}}$ , the lower will be the energy of the compound formed as compared to its constituents, and hence, more stable it will be.