1) Дано:
m = 27л
Q = 1500кДж (1500000Дж)
t_{2} =100c^{0}
c=4200 \frac{Dzn}{kg*c^{0} }
Найти:
t_{1}
Q= cm*(t _{2} -t _{1} )
(t _{2} -t _{1} )= \frac{Q}{cm}
(t _{2} -t _{1} )= \frac{1500000Dzn}{4200 \frac{Dzn}{kg*c^{0} }*27kg } = 13c^{0}
t _{1} = t _{2} -13c^{0} = 100c^{0} - 13c^{0} =87c^{0}
ответ: 87c^{0}
1) Дано:
m = 27л
Q = 1500кДж (1500000Дж)
t_{2} =100c^{0}
c=4200 \frac{Dzn}{kg*c^{0} }
Найти:
t_{1}
Q= cm*(t _{2} -t _{1} )
(t _{2} -t _{1} )= \frac{Q}{cm}
(t _{2} -t _{1} )= \frac{1500000Dzn}{4200 \frac{Dzn}{kg*c^{0} }*27kg } = 13c^{0}
t _{1} = t _{2} -13c^{0} = 100c^{0} - 13c^{0} =87c^{0}
ответ: 87c^{0}