The specific heat capacity of a substance A is 3,800 {\Jkg}^{-1} {\K}^{-1} and that of a substance B is 400 {\Jkg}^{-1} {\K}^{-1} . Which of the two substances is a good conductor of heat? Give a reason for your answer.

ICSE Class 10 Physics 2019 Solved Paper - Question 14

ICSE Class 10 Physics 2019 Solved Paper

Question : 14 of 74

Marks: +1, -0

The specific heat capacity of a substance

A

3,800 {\Jkg}^{-1} {\K}^{-1}

and that of a substance

B

400 {\Jkg}^{-1} {\K}^{-1}

. Which of the two substances is a good conductor of heat? Give a reason for your answer.

Solution:

Substance B is a good conductor of heat. It is because the substance with low specific heat capacity shows a rapid and high rise in temperature.
Thus it is a better conductor of heat than the substance with high specific heat capacity which shows a slow and small rise in temperature.

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