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nataliapavlova1
@nataliapavlova1
July 2022
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Стальной брусок массой 9.5кг остывает от 1000°С до 100°С
Сколько тепла при этом выделилось?
С стали=500 Дж/кг•°С
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fatt52
Verified answer
M=9.5 кг t1=1000 t2=100 c=500 Дж/кг*С Q=?
===
Q=c*m*(t1-t2)=500*9.5*(1000-100)=4.275*10^6 Дж (4,275 МДж)
================================================
1 votes
Thanks 0
madambekova98aliya
Q=cm (t2-t1)
T2=1000+273=1273
T1=100+273=373
Q= 500*9,5 (1100)= 5225кдж
0 votes
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Answers & Comments
Verified answer
M=9.5 кг t1=1000 t2=100 c=500 Дж/кг*С Q=?===
Q=c*m*(t1-t2)=500*9.5*(1000-100)=4.275*10^6 Дж (4,275 МДж)
================================================
T2=1000+273=1273
T1=100+273=373
Q= 500*9,5 (1100)= 5225кдж