Physics
(i) State whether the specific heat capacity of a substance remains the same when it's state changes from solid to liquid.
(ii) Give one example to support your answer.
Calorimetry
ICSE 2019
12 Likes
Answer
(i) The specific heat capacity of a substance changes when it's state changes.
(ii) The specific heat capacity of water is 4.2 J g-1°C-1 while that of ice (frozen water) is 2.1 J g-1°C-1
Answered By
7 Likes
Related Questions
Is it possible for a hydrogen () nucleus to emit an alpha particle? Give a reason for your answer.
Calculate the effective resistance across AB :
A magnet kept at the centre of two coils A and B is moved to and fro as shown in the diagram. The two galvanometers show deflection.
![A magnet kept at the centre of two coils A and B is moved to and fro as shown in the diagram. The two galvanometers show deflection. State with a reason whether x > y or x < y [x and y are magnitudes of deflection]. ICSE 2019 Physics Solved Question Paper.](https://cdn1.knowledgeboat.com/img/abp10/5/icse-2019-physics-question-paper-solved-4c-1200x271.png)
State with a reason whether :
x > y
or
x < y [x and y are magnitudes of deflection]
(i) Why is a nuclear fusion reaction called a thermo nuclear reaction?
(ii) Complete the reaction:
3He2 + 2H1 ⟶ 4He2 + ………. + Energy