Cw alk.=2420 J/kg*C
Tp=80st. C
Tk=20stC
Q=20kJ=20 000J
m=?
Q= m* cw * (Tp-Tk)
m=Q/ cw * (Tp-Tk)
m=20000J/2420J/kg *C *(80stC-20stC)
m=20000kg/2420*60=20000/145200 kg=0,138kg
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Cw alk.=2420 J/kg*C
Tp=80st. C
Tk=20stC
Q=20kJ=20 000J
m=?
Q= m* cw * (Tp-Tk)
m=Q/ cw * (Tp-Tk)
m=20000J/2420J/kg *C *(80stC-20stC)
m=20000kg/2420*60=20000/145200 kg=0,138kg