Question

29. (a) What is a calorimeter ?
(b) Name the material of which it is made of. Give
two reasons for using the material stated by you.
(c) Out of the three metals A, B and C of specific
heat capacity 900 J kg-1 °C-1, 380 J kg-1 °C
and 460 J kg-1 °C-1 respectively, which will you
prefer for calorimeter ? Give reason.
(d) How is the loss of heat due to radiation
minimised in a calorimeter ?​

Answer 1

Answer:

calorie metre is used to measure quantities of heat

Explanation:

beta I know this only

Answer 2

Answer:

(a) A calorimeter is an instrument used to measure the quantity of heat transferred from one object to another.

(b) Calorimeter is made up of copper because

• It is a good conductor of heat.
• It has high specific heat capacity.

(c) Metal B because low specific heat capacity & thus it reaches the equilibrium temperature quickly by absorbing a small amount of heat.

(d) Heat loss due to radiation is minimized by placing the calorimeter in a box and polishing the box in order to smoothen it.