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ruiwp13
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Homework Statement
For an hour , an athlete with 50kg of weight produces a work of 75kcal pedaling on the gym bike. During this period of time he consumes 60L of oxygen.
Calculate:
a) The power produced by the athlete
b) The variation of the internal energy of the athlete knowing that for each liter of oxygen consumed, 5kcal of energy are spent.
c) The heat transferred to the envolving environment.
Homework Equations
First law of thermodynamics E2-E1=Q-W
The Attempt at a Solution
For the first one I converted the 75kcal that he produces in an hour to Joule/s giving me the power. Now, the other two I'm having trouble knowing what to do. If you could help me I would appreciate it.
Thank you,
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