- #1
IshaanM8
- 7
- 1
Homework Statement
When running, some (heat) energy is lost by the evaporation of sweat. If a runner loses 1.0 MJ( Mega Joules) of energy via sweating, calculate an approximate mass of sweat evaporated from the runner.
Homework Equations
Q = McΔT
Q (Joules) = M (Mass) c (Maximum Heat Capacity) ΔT (Change in Temperature)
Evaporation (Phase Change - Latent Heat of Vaporization)
22.6 x 105
Maximum Heat capacity of Human body is 3500 Joules
The Attempt at a Solution
I'm sorry, I don't have an attempt here because I think we're missing something.
We have Q & c
We don't have the mass of the human body or the temperature change. Don't we need 2 equations minimum to solve 2 unknowns?
Is this question even solvable? I mean, how? The answer given was 0.4 kg. But how though...