Which of the following is/are not true about the heat capacity of a substance? (i) It is an intensiv

Question

Which of the following is/are not true about the heat capacity of a substance?
(i) It is an intensive property
(ii) Its S.I unit is JK⁻¹
(iii) It is an extensive property
(iv) Its S.I unit is Jkg⁻¹

Answer 1

Which of the following is/are not true about the heat capacity of a substance?
(i) It is an intensive property
(ii) Its S.I unit is JK⁻¹
(iii) It is an extensive property
(iv) Its S.I unit is Jkg⁻¹

(i) and (iii) only
(ii) and (iii) only
(i) and (iv) only ✓
(i), (ii) and (iv) only

Explanation

Heat capacity is the heat needed to raise the temperature of the whole body by 1 K. It depends on how much substance there is, so it is an extensive property. Its unit is J K⁻¹.

So the statements that are not true are (i), which says it is intensive, and (iv), which gives the unit as J kg⁻¹. Answer: (i) and (iv) only.

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