How much heat is abserbed by a copper inject wright 400kg is heated fr – InterviewSolution

1.

How much heat is abserbed by a copper inject wright 400kg is heated from 30°c to 72°c for the purpose of forging

Answer»

Answer:

M= 400 × 10³ gm ∆T=72-30=42 °C c=0.385 j/g°C

Now USE FORMULA

Q=m × c × ∆T

=>400 × 10³ × 0.385 × 42

=>6468000 joule

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