Chapter 17, Problem 17.104AP

(a)

Interpretation Introduction

Interpretation: The sign of $\Delta S$ for the given process and an equation that defines the melting temperature of DNA in terms of $\Delta H$ and $\Delta S$ is to be stated.

Concept introduction: Entropy is a thermodynamic property that provides a measure of the randomness of the atoms in the system. Free energy is equal to the difference between the enthalpy and the product of entropy at absolute temperature.

To determine: The sign of $\Delta S$ for the given forward process.

(b)

Interpretation Introduction

To determine: The sign of $\Delta S$ for the process by which two single strands reform the double helix.

(c)

Interpretation Introduction

To determine: An equation that defines the melting temperature of DNA in terms of $\Delta H$ and $\Delta S$.