Question

Question ⤵️

List two applications of thermal expansion of liquid. ​

Answer 1

• An important application is mercury thermometer or alcohol thermometer. When the bulb of the thermometer is kept in contact with a hot body the mercury expand and the level of mercury rises in the capillary tube.

Answer 2

Explanation:

Mercury is a metal found in a liquid state. It expands more and uniformly over a wide range of temperature. So the mercury is used as a thermometric liquid. Thermal expansion of bimetallic strips used as a heat operated switch in circuits of automatic equipment like iron box, fire alarm, electric heater, etc.