Question

2) (10 pts) How much energy does it take to evaporate 200 mL of sweat? Ignore the influence of salt on your skin (even though that influence does make a difference)

Answer 1

Answer: 446000 Joules

Step-by-step explanation:

Latent heat of vaporization is the amount of heat required to convert liquid to gas at atmospheric pressure.

Latent heat of vaporization = 2230 J/g

Volume of water = 200 ml

Density of water = 1 g/ml

Mass of water = ?

`Density=(mass)/(Volume)`

`1g/ml=(mass)/(200ml)`

`mass=200g`

1 gram of water requires energy to evaporate = 2230 Joules

200 gram of water requires energy to evaporate =
`(2230)/(1)* 200=446000Joules`

Thus 446000 Joules of energy is required to evaporate 200 mL of sweat.