(i) Heat energy needed to warm it by 15oC, and
(ii) Its specific heat capacity in S.I unit.
Solution:
(i) We know that the heat energy required is given by the product of heat capacity and the change in temperature. Therefore, the heat energy required to raise the temperature by 150 C becomes –
Heat energy = 966 J K-1 × 15 K = 14490 J
(ii) We know that the expression for Specific heat capacity is
Specific heat capacity = heat capacity / mass of substance = 966 / 2
therefore, Specific heat capacity = 483 J kg-1 K-1
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