1 How much heat is absorbed by a copper
ingot weighing 400 Kg is heated from 30°C to 72°C
for the purpose of forging? (sp.heat of copper is
0.09) |
Answers
Answered by
11
Question:
How much heat is absorbed by a copper ingot weighing 400 Kg is heated from 30°C to 72°C for the purpose of forging? (sp.heat of copper is0.09)
Answer:
Specific heat(s)=0.09 j/g℃
Mass(m)=400 kg=400000 g
Change in temperature(∆t)=72°-30°=32℃
Heat(Q)=m×s×∆t
➳400000×0.09×32
➳1,152,000 J
➳1152 kcal
Answered by
1
Step-by-step explanation:
Specific heat(s)=0.09 j/g℃
Mass(m)=400 kg=400000 g
Change in temperature(∆t)=72°-30°=32℃
Heat(Q)=m×s×∆t
=400000×0.09×32
=1,152,000 J
=1152 kcal
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