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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferEasy2 min

PhysicsEasyinteger

A swimmer comes out of a pool and 5 g of water evaporates from the skin. Find the heat taken from the body in kJ (latent heat of vaporisation $2.4 \times 1 0^{6}$ J $k g^{- 1}$ ; one decimal).

Answer:

Solution:

$Q = m L = 5 \times 1 0^{- 3} \times 2.4 \times 1 0^{6} = 12000$ J = $12.0$ kJ. This is why you feel cold when wet.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

⏱ 2m

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