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How much heat is absorbed when a block of copper of mass 0.05kg and specific...

Physics
JAMB 1992
How much heat is absorbed when a block of copper of mass 0.05kg and specific heat capacity 390Jkg-1K-1 is heated from 20oC to 70oC?
  • A. 39 . 98 x 10-1J
  • B. 9.75 x 102J
  • C. 3.98 x 103J
  • D. 9.75 x 103J
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Correct Answer: Option B
Explanation
Q = mc\(\theta\)

= 0.05 x 390 x (70 - 20)

= 975J
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