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ksenia090204
@ksenia090204
October 2021
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26 пожалуйста
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ответ должен быть 31 градус
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fatt52
Verified answer
M=0.2 кг Q=5200 кал с=59,7 кал λ=14000 кал/кг t=232 (температура плавления) to=?
===
Q=c*m*(t-to)+λ*m
to=t - (Q-λ*m)/(c*m)=232 - (5200-14000*0.2)/(59.7*0.2)=232-201=31°C
=====================================================
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Answers & Comments
Verified answer
M=0.2 кг Q=5200 кал с=59,7 кал λ=14000 кал/кг t=232 (температура плавления) to=?===
Q=c*m*(t-to)+λ*m
to=t - (Q-λ*m)/(c*m)=232 - (5200-14000*0.2)/(59.7*0.2)=232-201=31°C
=====================================================