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How much heat is required to convert 20 g of ice at 0oC to water...

Physics
WAEC 1995

How much heat is required to convert 20 g of ice at 0oC to water at the same temperature? (Specific latent heat of ice = 336 J g-1)

  • A. 1.35 x 103J
  • B. 5.38 x 103J
  • C. 6.72 x 103J
  • D. 7.06 x 103J
  • E. 8.06 x 103J
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Correct Answer: Option C
Explanation

The formula of specific latent heat of fusion is given by: Q = mL

: 20 X 336

= 6720 or 6.72 X 10\(^3\)

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