Question

The relation between the coefficient of real expansion (${\gamma }_r$) and coefficient of apparent expansion (${\gamma }_a$) of a liquid and the coefficient linear expansion (${\alpha }_g$) of the material of the container is :

• A. ${\gamma }_r={\alpha }_g+{\gamma }_{\alpha }$
• B. ${\gamma }_r={\alpha }_g+3{\gamma }_{\alpha }$
• C. ${\gamma }_r=3{\alpha }_g+{\gamma }_{\alpha }$
• D. ${\gamma }_r=3({\alpha }_g+{\gamma }_{\alpha })$

Answer 1

The correct option is C ${\gamma }_r=3{\alpha }_g+{\gamma }_{\alpha }$

${\gamma }_r={\gamma }_a+{\gamma }_g={\gamma }_a+3{\alpha }_g$