Question

Name the material of which the calorimeter is made of. Give two reasons for using
the material stated by you.
[3]
Name three factors on which the heat energy absorbed by a body depends.
[3]
(i) How does the average kinetic energy and the average potential energy of
molecules of a substance change during its change in phase at a constant
temperature, on heating?
121
[2]
(ii) Why is the base of a cooking pan made thick and heavy?
N​

Answer 1

Answer:

Copper is a good conductor of heat, so the vessel soon acquires the temperature of its contents. (ii)Copper has low specific heat capacity so the heat capacity of calorimeter is low and the amount of heat energy taken by the calorimeter from its contents to acquire the temperature of its contents is negligible.

Explanation:

Color of the body. Dark colors absorb more heat, black surface does the most, while the white surfaces do the least. Temperature of the body. Lesser is the temperature of the body, greater will be its ability to absorb heat. 3)Average kinetic energy does not change. ... Explanation: When a substance is heated at constant temperature (i.e. during its phase change state), the heat supplied makes the vibrating molecules gain potential energy to overcome the intermolecular force of attraction and move about freely 4)

By making the base of a cooking pan thick, its thermal capacity becomes large and it imparts sufficient heat energy at a low temperature to the food for proper cooking. Further, it keeps the food warm for a long time after cooking. mark my answer brallinest plz