A mercury thermometer has the ice point (0 °C) and the steam point (100 °C) marked…
PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
A mercury thermometer has the ice point (0 °C) and the steam point (100 °C) marked 10.0 cm apart on its stem. When its bulb is placed in an unknown liquid, the mercury column rises 2.5 cm above the ice point.
(i) Calculate the temperature of the liquid in °C.
(ii) Name the principle that justifies using the thermometer reading as the liquid’s temperature.