The S.I. unit of specific heat capacity is :
(a) J kg−1 (b) J K−1
(c) J kg−1 K−1 (d) kcal kg−1 ∘C−1
The specific heat capacity of water is :
(a) 4200 J kg−1 K−1 (b) 420 J kg−1 K−1
(c) 0.42 J g−1 K−1 (d) 4.2 J kg−1 K−1