Question

K-9
3
12. Observe the table and answer the following questions.
Substance | / Specific heat →
Cal/g-ºc
J/Kg - K
Lead
0.031
130
Copper
0.095
399
Aluminium
0.21
882
Water
1.0
4180
i) How much heat energy is required to rise 1°C of water of 1 gram?
ii) Mention the relation between cal/g-C and J/Kg-K.
iii) Which metal heated up very quickly among the given substances ?
iv) Mention the CGS unit for specific heat.
13 What are the annumtur und​

Answer 1

Answer:

1.Material having low specific heat value will be used as the base of cooking vessel so from small amount of heat it  can spread the heat over all container through conduction. That's why we used copper as it has low specific heat value.

2.A coolant is a material that can easily reduce or regulate temperature so material having high specific constant here water will be used as coolant.