Chapter 8, Problem 8.2P

Interpretation Introduction

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

$C_P=35.3+0.0291T$

Where, T = temperature

Interpretation Introduction

(b)

Interpretation:

The $\Delta H$ for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

$C_P=35.3+0.0291T$

Where, T = temperature

Interpretation Introduction

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

$C_P=35.3+0.0291T$

Where, T = temperature.

Interpretation Introduction

(d)

Interpretation:

Th reason for the value of $\Delta H$ to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

$C_P=35.3+0.0291T$

Where, T = temperature.