750-gram water at 15°C mixed with 1kg water at 95°C. Determine the final temperature of the mixture!
Jawaban:
750 gr = 0,75 kg
Q = m.c.∆T
both of them are water so u can ignore c
0,75 . c . ( T-15 ) = 1 . c . ( 95-T )
0,75T - 11,25 = 95 - T
1,75 T = 95 + 11,25
T = 106,25 / 1,75
T = 60,714285714285 °C
T = 60,7 ° C
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