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c = 0,5 kal/grC
m = 800 gram
T0= -12 C
T = 0 C
dit : Q ?
dijwb :
Q = m x c x ΔT
= 800 x 0,5 x (0- (-12))
= 800 x 0,5 x 12
= 4.800 kal
= 800× o,5 × 12
= 4800 joule..