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The quantity of heat required to melt ice of 0.2 kg whose specific latent heat...

Physics
JAMB 2024

The quantity of heat required to melt ice of 0.2 kg whose specific latent heat is 3.4 x 10\(^5\)J/Kg is

  • A. 6.8 x 10\(^4\)J
  • B. 8.6 x 10\(^4\)J
  • C. 1.7 x 10\(^5\)J
  • D. 1.7 x 10\(^6\)J
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Correct Answer: Option A
Explanation

The quantity of heat required to melt ice = mass of ice x specific latent heat 

Q = m L = 0.2 x  3.4 x 10\(^5\) = 6.8 x 10\(^4\)J

There is an explanation video available below.

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Explanation Video

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