Question

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) |

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Answer 1

$\bf Hey\:There\:!$

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

Answer 2

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