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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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Question

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.
Numerical

Solution

(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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Chapter 5: Heat - Exercise 5.1 ii [Page 234]

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Frank Physics - Part 2 [English] Class 10 ICSE
Chapter 5 Heat
Exercise 5.1 ii | Q 12 | Page 234
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