In an experiment to find the liquid expansion coefficient $(\gamma)$ a column. of experimental liquid at $T\,^oC$ is balanced against another column of experimental liquid at $0\, ^o C$ by taking them in $U-$ tube. The expansion coefficient $(\gamma)$ is ?
$\frac{{{h_T}}}{{\left( {{h_T} - {h_0}} \right)T}}$
$\frac{{{h_0}}}{{\left( {{h_T} - {h_0}} \right)T}}$
$\frac{{\left( {{h_T} - {h_0}} \right)}}{{{h_0}T}}$
$\frac{{{h_T} - {h_0}}}{{{h_T}T}}$
Explain linear expansion. Write a unit.
A glass flask is filled up to a mark with $50\, cc$ of mercury at $18°C.$ If the flask and contents are heated to $38°C.$ ......... $cc$ mercury will be above the mark $?$ $(\alpha$ for glass is $ 9 × 10^{-6}{°}C^{-1}$ and coefficient of real expansion of mercury is $180 × 10^{-6}{°}C^{-1})$
$5$ litre of benzene weighs
Give value of coefficient of volume expansion at room temperature for ideal gas.
When the temperature of a metal wire is increased from $0^{\circ} \,C$ to $10^{\circ}\, C$, its length increases by $0.02 \% .$ The percentage change in its mass density will be closest to: