Advertisements
Advertisements
Question
Describe an experiment to showthat air expands on heating.
Advertisements
Solution
Take a glass fL bottomed flask. Close its mouth with a cork having capillary tube containing an indicator visible in the tube as shown. Make it airtight. Place the flask in hot water. After a few minutes, we see the indicator moving up. This happens because the air inside the flask expands with rise in temperature. This proves that gases expand on heating.
APPEARS IN
RELATED QUESTIONS
Kerosene contracts on heating.
A metal plate is heated. State three factors on which the increase in its area will depend.
Describe an experiment to show that same volume of different liquids heated to same rise in temperature expand by different amounts.
An iron washer is heated State the effect on its density.
An iron washer is heated. State the effect on its internal diameter.
At what temperature the pure water has (a) maximum density (b) minimum volume?
Give reasons for the following:
In cold countries, water pipes burst in winter.
Borosilicate glass do not expand much on being heated.
