Question

The length of mercury thread in a thermometer rises by $12cm$ when it is transferred from water at $273K$ to water at $373K$. If the thermometer is to be calibrated in ${}^{o}C$, find the length of one degree on the thermometer.

Answer 1

Rise in the temperature $=12cm$

Change in the temperature $={100}^{\circ }C$

Change in the temperature in $1^{\circ }$$=\frac{12cm}{{100}^{\circ }C}$

$⟹0.12cm/{}^{\circ }C$