Advertisements
Advertisements
Question
Describe an experiment to show that same volume of different liquids heated to same rise in temperature expand by different amounts.
Advertisements
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
Equal volumes of different liquids expand by a different amount when they are heated to the same rise in temperature.
The increase in length of a metal rod depends on
A metal plate is heated. State three factors on which the increase in its area will depend.
An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into water. Explain the reason.
An iron washer is heated. State the effect on its external.
Define the following term:
Coefficient of cubical expansion
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
What difference do you think heating the solid will make in their molecules?
What type of glassware is used in laboratories? Why?
