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A Piece of Iron of Mass 2.0 Kg Has a Thermal Capacity of 966 J/0c. Find: (I) Heat Energy Needed to Warm It by 150c, and (Ii) Its Specific Heat Capacity in Si Unit. - Physics

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प्रश्न

A piece of iron of mass 2.0 kg has a thermal capacity of 966 J/0C. Find: (i) Heat energy needed to warm it by 150C, and (ii) Its specific heat capacity in SI unit.
संख्यात्मक

उत्तर

(i) Given: Heat Capacity, me = 966 J/°C

Heat energy required, Q = m x C x change in temperature

= 966 x 15 = 14490 J

(ii) Q = m x C x T

Specific heat capacity, C = `"Q"/("m"Δ "T")`

                                       = `14490/(2 xx 15)`

                                       = 483 Jkg-1 °C-1 

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अध्याय 5: Heat - Exercise 5.1 ii [पृष्ठ २३४]

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फ्रैंक Physics - Part 2 [English] Class 10 ICSE
अध्याय 5 Heat
Exercise 5.1 ii | Q 12 | पृष्ठ २३४
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