Chapter 9, Problem 109AE

Interpretation Introduction

Interpretation: The reaction in which work done by the surrounding on the system needs to be identified by assuming that pressure and temperature are constant.

Concept Introduction: Thermodynamic is a branch of chemistry that deals with the energy change with the system and surroundings. It indicates the energy conversion and transfer between system and surroundings.

At constant volume the change in heat for a system to change the internal energy is represented as ΔE or q_V.

At constant pressure the change in heat for a system to change the enthalpy is represented as ΔH or q_p. The relation between $\text{ΔH}$ and $\text{ΔE}$ can be written as:

  $\text{ΔH = ΔE + }\Delta \text{(PV) = ΔE + }\Delta \text{nRT}$