Batang aluminium bersuhu 30°C dimasukkan ke dlm 150 gr air bersuhu 90°C. apabila suhu campuran 50°C massa aluminium sebesar..... kg (c. air=4200 j/kg dan c. aluminium= 900j/kg°C)
ANDHIKAAZIS663
DIK = T2 = 90 C T1 = 30 C TC = 50 C M air = 150 gram = 0,15 kg C alumunium = 900 J/Kg C C air = 4.200 J/Kg C
DIT = M alumunium ???
DIJ = M alumunium = M air x C air x DeltaT2 : C alumunium x DeltaT1
T1 = 30 C
TC = 50 C
M air = 150 gram = 0,15 kg
C alumunium = 900 J/Kg C
C air = 4.200 J/Kg C
DIT = M alumunium ???
DIJ = M alumunium = M air x C air x DeltaT2 : C alumunium x DeltaT1
0,15 Kg x 4.200 J/Kg C x 40 C : 900 J/Kg C x 20 C
25.200 J : 18.000 J/Kg = 1,4 Kg.