m=100g
C=400 \frac{Dg}{kg*^oC}
λ =210000 \frac{Dg}{kg}
t_1^o=1075^oC
t_2^o=1085^oC
Q-?
Q=Q_1+Q_2
Q_1=Cm(t_2^o-t_1^o)
Q_2= λ m
m=100g=0,1kg
Q_1=400 \frac{Dg}{kg*^oC} *0,1kg*(1085^oC-1075^oC)=400Dg
Q_2=210000 \frac{Dg}{kg}*0,1kg=21000Dg
Q=400Dg+21000Dg=21400Dg=21,4kDg
Объяснение:
m=100g
C=400 \frac{Dg}{kg*^oC}
λ =210000 \frac{Dg}{kg}
t_1^o=1075^oC
t_2^o=1085^oC
Q-?
Q=Q_1+Q_2
Q_1=Cm(t_2^o-t_1^o)
Q_2= λ m
m=100g=0,1kg
Q_1=400 \frac{Dg}{kg*^oC} *0,1kg*(1085^oC-1075^oC)=400Dg
Q_2=210000 \frac{Dg}{kg}*0,1kg=21000Dg
Q=400Dg+21000Dg=21400Dg=21,4kDg
Объяснение: