Question

2. Briefly describe how will you find experimentally
density of kerosene oil with a density bottle.
3. How does the density of a liquid change with the
rise in its temperature?
4. On the basis of change of density with the
change in temperature, explain how do the liquids
get heated up, when heated in a vessel.
5. (a) How does the density of gases change with
the rise in temperature?​

Answer 1

Answer:

Explanation

1 you have to find the mass of nmt density bottle after that will the bottle with water and weigh the bottle once again now what you have to do is used to repeat the same with kerosene now divide the mass of the kerosene by mass of the water and you will get the density of kerosene......

2 Answer:As raise in temperature the density of liquid decreases Density= mass/volume As at constant pressure temperature increases volume increases PV=nRTDensity is inversely proportional to volume hence density decreases

3 when liquid is getting heated up, heat energy is absorbed by water molecules and their kinetic energy increases. Molecules are moving with greater speed and their inter-moleculer distance increases. This makes the volume to increase and hence density of liquid decreases with increasing temperature