Chapter 6, Problem 6.17QP

Interpretation Introduction

Interpretation:

The change in energy has to be calculated.

Concept Introduction:

The internal energy of the system can be given from the equation for the first law of thermodynamics can be given as,

$\text{ΔU=q+w}$

• If system gains heat, then $\text{q}$= positive.
• If work is done on the system, then $\text{w}$= positive.
• If system loses heat, then $\text{q}$= negative.
• If work is done by the system, then $\text{w}$= negative.

 Where $\text{ΔU=change}\text{in}\text{internal}\text{energy}$

$\text{q}$ = heat absorbed or released

$\text{w=work}\text{done}$