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A drop of petrol makes a finger colder than a drop of water would because?

Physics
JAMB 2006

A drop of petrol makes a finger colder than a drop of water would because?

  • A. petrol takes its latent heat of veporization from the finger
  • B. petrol takes its latent heat of fusion from the finger
  • C. water is more viscious than petrol
  • D. water has higher surface tension dan petrol
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Correct Answer: Option A
Explanation

This process occurs as the petrol evaporates, drawing heat away from the skin and causing a cooling sensation.

There is an explanation video available below.

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Explanation Video

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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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