Quick Answer: The Dilatometer for Liquids and Gases is a physics apparatus for observing the thermal expansion of liquids and gases on heating and their contraction on cooling. The change in liquid level or gas volume is recorded against temperature.
Last updated: October 2026
Key Features
Shows expansion of liquids and gases on heating and contraction on cooling
Heated gently with a laboratory heat source or water bath
Volume change is recorded against temperature for comparison
Supports work on volume expansion and the coefficient of expansion
Technical Specifications
Specification
Value
Application
Study of thermal expansion of liquids and gases
Operation
Manual heating and observation-based experiment
Concepts covered
Heat, temperature, volume expansion, contraction, coefficient of expansion
About This Product
Students record the starting level at room temperature, warm the apparatus and note how far the level moves as the temperature rises. The readings connect to everyday cases such as thermometers, expansion tanks and the gas laws, and give a practical route to the relation between temperature and volume.
Frequently Asked Questions
Can the Dilatometer for Liquids and Gases be heated in a water bath?
Yes. Once all joints, stoppers and tubes are fitted, it is heated gently with a suitable laboratory heat source or a water bath.
