Specific heat capacity of a substance X is ...

ICSE Class 10 Physics 2023 Paper

SECTION A

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Question : 13 of 76

Marks: +1, -0

Specific heat capacity of a substance

X

1900\,\mathrm{Jkg}^{-1}\,{}^{\circ}\mathrm{C}^{-1}

means :

Substance $X$ absorbs $1900\,\mathrm{J}$ for $1^{\circ}\,\mathrm{C}$ rise in temperature
$1\,\mathrm{kg}$ of substance $X$ absorbs $1900\,\mathrm{J}$ heat for $1^{\circ}\,\mathrm{C}$ rise in temperature
$1\,\mathrm{kg}$ of substance $X$ absorbs $1900\,\mathrm{J}$ heat to increase the temperature
$1\,\mathrm{kg}$ substance $X$ absorbs $1900\,\mathrm{J}$ heat to cool down by $1^{\circ}\,\mathrm{C}$

Solution:

(b)

1\,\mathrm{kg}

of substance

X

absorbs

1900\,\mathrm{J}

heat for

1^{\circ}\,\mathrm{C}

rise in temperature.

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