Chapter 6, Problem 6.2NP

Interpretation Introduction

Interpretation:

The value of $K_P$ at 298 and 490 K for the reaction $\text{NO}\left(g\right)+1/2{\text{O}}_{\text{2}}\left(g\right)\to {\text{NO}}_{\text{2}}\left(g\right)$ should be calculated. Whether the value of $K_P$ will increase or decrease as the temperature increased to 600 K should be stated.

Concept Introduction:

The standard enthalpy for a reaction is calculated by the formula as shown below:

  $\Delta H_{\text{f}}°={\displaystyle \sum v\Delta H_{\text{f}}°\left(\text{product}\right)}-{\displaystyle \sum v\Delta H_{\text{f}}°\left(\text{reactant}\right)}$

Where,

• $\Delta H_{\text{f}}°\left(\text{product}\right)$ is the standard change in enthalpy for product.
• $\Delta H_{\text{f}}°\left(\text{reactant}\right)$ is the standard change in enthalpy for reactant.
• $v$ is the number of moles.