Specific heat capacity of substance $A$ is $3.8 J g^{- 1} K^{- 1}$ whereas the Specific heat capacity of substance $B$ is $0.4 J g^{- 1} K^{- 1}$ .
(i) Which of the two is a good conductor of heat?
(ii) How is one led to the above conclusion?
(iii) If substances $A$ and $B$ are liquids then which one would be more useful in car radiators?

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Solution

(i) Substance $B$ is a good conductor of heat.
(ii) Substance $B$ is a good conductor of heat because specific capacity of $B$ is less then that of $A$ .
(iii) Substance $A$ is more useful in car radiator.

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Similar questions

Q. Specific heat capacity of a substance A is

3.8 J g^{- 1} K^{- 1}

and of substance B is

0.4 J g^{- 1} K^{- 1}

is a good conductor of heat ?

Specific heat capacity of a substance A is 3.8 J $g^{- 1} K^{- 1}$ and of the substance B is 0.4 J $g^{- 1} K^{- 1}$ .Which substance is a good conductor of heat? How did you arrive at your conclusion ?

Q. Specific heat capacity of a substance A is

3.8 J / g - K

and of substance B is

0.4 J / g - K

. Which substance is a better conductor of heat?

Q. Consider the following statements.

1.

Specific heat capacity is the amount of heat required to raise the temperature of

1 k g

of a substance through

1

kelvin.

2.

The SI unit of specific heat capacity is

J k g^{- 1} K^{- 1}

and in CGS it is

c a l g^{- 1}^{\circ} C^{- 1}

3.

Thermal capacity is the amount of heat required to raise the temperature of a given amount of substance through

1

kelvin.
Which of the statements given above are correct?

Q. Statement 1: Heat capacity/Thermal capacity of a substance depends on mass of substance.
Statement 2: Specific heat capacity of a substance is independent of mass of substance.

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(i) Substance B is a good conductor of heat.(ii) Substance B is a good conductor of heat because specific capacity of B is less then that of A.(iii) Substance A is more useful in car radiator.

(i) Substance $B$ is a good conductor of heat.
(ii) Substance $B$ is a good conductor of heat because specific capacity of $B$ is less then that of $A$ .
(iii) Substance $A$ is more useful in car radiator.