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1kg of copper is transferred quickly from boiling water to a block of ice. Calculate...

Physics
JAMB 1990
1kg of copper is transferred quickly from boiling water to a block of ice. Calculate the mass of ice melted, neglecting heat loss. [specific heat capacity of copper 400Jkg-1K-1 and latent heat of fusion of ice 333 x 103Jkg-1]
  • A. 60g
  • B. 67g
  • C. 120g
  • D. 133g
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Correct Answer: Option C
Explanation
Heat lost = heat gained

1 x 400 x (100 - 0) = m x 333000

m = 0.12kg

converting to grams; 0.12 x 1000

= 120g
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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