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lumekelluke
@lumekelluke
July 2022
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Сколько спирта надо сжечь, чтобы нагреть 2 кг воды От 14 до 50 С?
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solvo
Verified answer
m1=2 кг
t1=14C
t2= 50 С
m-?
qm=cm1(t2-t1),
m=cm1/(t2-t1)/1,
m=4200*2*36/(29*10^6) = 0,01 кг=10 г.
4 votes
Thanks 5
lumekelluke
Может все-таки вторая формула Q=qm
lumekelluke
q=27 MДж/ кг
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Answers & Comments
Verified answer
m1=2 кгt1=14C
t2= 50 С
m-?
qm=cm1(t2-t1),
m=cm1/(t2-t1)/1,
m=4200*2*36/(29*10^6) = 0,01 кг=10 г.