What is specific heat capacity?

The specific heat capacity of any substance is the amount of heat required to raise the temperature of one unit substance by one degree celsius. The substances with higher specific heat capacity take longer to heat up and to cool down. S.I. unit of specific heat is J kg - 1 ° C - 1 . S = Q m ∆ t (Where, S is the specific heat, Q is the heat, m is the mass, and ∆ t is the change in temperature)

E M B I B E

Pearson IIT Foundation Physics>Chapter 3 - Heat>PRACTICE QUESTIONS (CLASSROOM WING)>Q 18

MEDIUM

7th CBSE

IMPORTANT

Earn 100

Arrange the following substances in the increasing order of their thermal conductivity.
Copper, iron, glass.

21.43% studentsanswered this correctly

Important Questions on Heat

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7th CBSE

IMPORTANT

Pearson IIT Foundation Physics>Chapter 3 - Heat>PRACTICE QUESTIONS (CLASSROOM WING)>Q 19

Mercury has a _____ boiling point and a _____ melting point.

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7th CBSE

IMPORTANT

Pearson IIT Foundation Physics>Chapter 3 - Heat>PRACTICE QUESTIONS (CLASSROOM WING)>Q 20

Choose the correct statement:
(A) When heat energy is given to ice at

0 ° C

, the potential energy of the molecules of ice increases.
(B) Heat added to ice at 0°C does not increase the kinetic energy, and hence, there is no rise of temperature.

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7th CBSE

IMPORTANT

Pearson IIT Foundation Physics>Chapter 3 - Heat>PRACTICE QUESTIONS (CLASSROOM WING)>Q 21

Choose the correct statement:
(A) Boiling of a given substance takes place at all temperatures.
(B) Evaporation of a substance takes place at a constant temperature.
(C) Boiling takes place at every part of the liquid.
(D) Evaporation takes place only on the surface of liquid.

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7th CBSE

IMPORTANT

Pearson IIT Foundation Physics>Chapter 3 - Heat>PRACTICE QUESTIONS (CLASSROOM WING)>Q 22

Choose the correct statement:
(A) Solids undergo linear, arial and cubical expansions.
(B) Liquids and gases undergo cubical expansion.

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7th CBSE

IMPORTANT

Pearson IIT Foundation Physics>Chapter 3 - Heat>PRACTICE QUESTIONS (CLASSROOM WING)>Q 23

In solids generally, the heat is transferred by the process of _____.

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7th CBSE