Physics

Problem

Which of the following relations correctly expresses the real coefficient of cubical expansion

\gamma_{r}

of a liquid in terms of its apparent coefficient

\gamma_{a}

and the cubical expansion coefficient of the container

\gamma_{\text{container}}

? a)

\gamma_{r}=\gamma_{a}-\gamma_{\text{container}}

\gamma_{r}=\dfrac{\gamma_{a}+\gamma_{\text{container}}}{3}

\gamma_{r}=\gamma_{a}+\gamma_{\text{container}}

\gamma_{r}=\gamma_{a}+3\gamma_{\text{container}}