How is heat loss prevented in a Calorimeter?

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Solution

Calorimeter
A calorimeter is a tool or instrument that is used to measure the heat released or absorbed by a material.
A calorimeter consists of a thermometer, high pressurized oxygen, insulated water bath, bomb, and many other important elements.
Diagram
Prevention of heat in the calorimeter
To prevent heat transfer by conduction a Calorimeter is covered by a well-lagged vessel using wool or cork material.
To prevent heat transfer due to convection a lid is used in the Calorimeter box.
Heat loss can also be prevented due to radiation by making the surface smooth and shiny.

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Why is the loss of heat due to radiation minimised in a calorimeter?

(a) What is 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 k $g^{- 1}^{\circ} C^{- 1}, 380 J k g^{- 1}^{\circ} C^{- 1} a n d 460 J k g^{- 1}^{\circ} C^{- 1}$ respectively,which will you prefer for calorimeter? Give reason.

(d) How is the loss of heat due to radiation minimized in a calorimeter?

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