Imagine that a hypothetical life form is discovered on our moon and transported
ID: 883922 • Letter: I
Question
Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot day, this life form begins to sweat, and it is determined that the heat of vaporization of its sweat is 105cal/g. The scientist observing the extraterrestrial form also begins to sweat. The heat of vaporization of the scientist's sweat is 580cal/g at the skins surface. If both the extraterrestial life form and the scientist lose 3.70 x 102g of sweat over the course of one hour calculate the heat lost by each body from the vaporization of sweat.
Explanation / Answer
Q = Hvap x msweat
Q, heat lost
Hvap, heat of vaporization
msweat, sweat mass in grams
If BOTH the extraterrestial life form and the scientist lose 3.70 x 102g (377.4g) of sweat over the course of one hour.
For the hypothetical life form:
Q, 39627 cal
Hvap, 105 cal/g
msweat, 3.70 x 102g = 377.4g
For the scientist:
Q, 218892 cal
Hvap, 580 cal/g
msweat, 3.70 x 102g = 377.4g