Chapter 16, Problem 124QRT

(a)

Interpretation Introduction

Interpretation:

Whether the reaction $2{\text{NO}}_{\text{2}}\left(\text{g}\right)\to {\text{N}}_{\text{2}}{\text{O}}_{\text{4}}\left(\text{g}\right)$, is always product-favored reaction, never product-favored, product-favored at low temperature, but not product-favored at high temperature or product-favored at high temperature, but not product-favored at low temperature has to be stated.

Concept Introduction:

The term entropy is used to represent the randomness in a system.  When a system moves from an ordered arrangement to a less order arrangement, then the entropy of the system increases.  The second law of thermodynamics state that “the entropy of the system either increases or remains the same.”

(b)

Interpretation Introduction

Interpretation:

Whether the reaction ${\text{C}}_{\text{5}}{\text{H}}_{\text{12}}\left(\text{g}\right)+8{\text{O}}_{\text{2}}\left(\text{g}\right)\to 5{\text{CO}}_{\text{2}}\left(\text{g}\right)+6{\text{H}}_{\text{2}}\text{O}\left(\text{g}\right)$, is always product-favored reaction, never product-favored, product-favored at low temperature, but not product-favored at high temperature or product-favored at high temperature, but not product-favored at low temperature has to be stated.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

Whether the reaction ${\text{P}}_{\text{4}}\left(\text{g}\right)+10{\text{F}}_{\text{2}}\left(\text{g}\right)\to 4{\text{PF}}_{\text{5}}\left(\text{g}\right)$, is always product-favored reaction, never product-favored, product-favored at low temperature, but not product-favored at high temperature or product-favored at high temperature, but not product-favored at low temperature has to be stated.

Concept Introduction:

Refer to part (a).