dane:
m = 2 kg
t1 = 20*C
Q = 42 kJ = 42 000 J
C = 4200 J?kg*C
szukane:
tk = ?
Q = m*C*(tk - t1) /:mC
tk - t1 = Q/mC
tk - t1 = 42000J/(2kg*4200J/kg*C)
tk - t1 = 5*C
tk = 5*C + t1 = 5*C + 20*C
tk = 25*C
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dane:
m = 2 kg
t1 = 20*C
Q = 42 kJ = 42 000 J
C = 4200 J?kg*C
szukane:
tk = ?
Q = m*C*(tk - t1) /:mC
tk - t1 = Q/mC
tk - t1 = 42000J/(2kg*4200J/kg*C)
tk - t1 = 5*C
tk = 5*C + t1 = 5*C + 20*C
tk = 25*C
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