9(a)
(i) Define heat capacity of a substance.
(ii) Write the SI unit of heat capacity.
(iii) What is the relationship between heat capacity and specific heat capacity of a substance?
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(i) The heat required to raise the temperature of a substance or body through 1 °C (or 1 K) is called it's heat capacity.
(ii) S.I. unit of heat capacity is J °C-1 or J K-1
(iii) Specific heat capacity = $\frac{\text{Heat capacity}}{\text{Mass of body or substance}}$