51. A) Answer the following questions by using the data given in the table.
(Chapter No : 1)
Substance
Specific Heat (Cal/g°C)
Lead
2.031
Aluminium
0.21
0.095
Copper
Water
1.00
Iron
0.115
Jikg-k
a) Write SI units for Specific Heat.
b) If we supply same amount of heat, which substance will heat
faster?
c). Calculate the amount of heat required to raise the temperature of 1 kg of iron
through 10°C.
d) If we supply same amount of heat which substance will heat up slowly?
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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.
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