plz ans -calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube ,atomic weight=63.55, cp=24j/k/mole
ROOPA K V , 12 Years ago
Grade 12th Pass
1 Answers
Akash Kumar Dutta
Last Activity: 12 Years ago
Dear Roopa,
your question is based on a simple formula, heat energy required = mcT mass=d.v=8933 . (.02)^3 = .0712 kg = 71.2 gm mo of moles = 71.2 / 63.55 = 1.12 moles c=24 j/k-mole. T=20 H= (1.12) . 24 . 20 =537.6 Joules (ANS)
Regards.
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