Advertisements
Advertisements
Question
Describe an experiment to show that same volume of different liquids heated to same rise in temperature expand by different amounts.
Solution
CUBICAL EXPANSION OF DIFFERENT LIQUIDS IS DIFFERENT:
Experiment: Take four identical glass flasks each fitted with a narrow glass tube through a cork at its mouth. Fill flask A with water, B with kerosene, C with alcohol and D with Benzene. So that volume of each is same i.e. to the same level and their levels are visible above hot water bath. Put enough hot water in hot-water-bath. So that each flask is in the hot water. After some time we will see those different liquids rise to different levels. Water expands the least and benzene the most. This shows that different liquids of the same volume expand by a different amount.
APPEARS IN
RELATED QUESTIONS
A longer rod expands ........... than a shorter rod on being heated to the same temperature.
In the ball and ring experiment, if the ball after heating is left to cool on the ring for sometime, the ball again passes through the ring. Explain the reason.
Water is heated from 0°C to 4°C. Will it expand?
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
Borosilicate glass do not expand much on being heated.
Explain thermal expansion with suitable examples.
