- #1
thenewbosco
- 187
- 0
Here is my problem:
A cylinder with 0.4m radius and 0.5m depth is filled with air at 20C and 1atm.
A 20.0 kg piston is lowered into the cylinder, compressing the air inside. Finally a 75 kg man stands on the piston further compressing the air which remains at 20C.
how far down does the piston move when the man steps on it and to what temp. must the gas be heated to return the man back to the height when the 20kg piston was placed on.
So far i have calculated the number of moles of gas in the container, which will be constant throughout. and i can calculate the force applied when the man and piston are compressing it as mgh. i suppose the h will give me the distance it compresses but i have nothing to equate mgh to...
can someone help me out here
A cylinder with 0.4m radius and 0.5m depth is filled with air at 20C and 1atm.
A 20.0 kg piston is lowered into the cylinder, compressing the air inside. Finally a 75 kg man stands on the piston further compressing the air which remains at 20C.
how far down does the piston move when the man steps on it and to what temp. must the gas be heated to return the man back to the height when the 20kg piston was placed on.
So far i have calculated the number of moles of gas in the container, which will be constant throughout. and i can calculate the force applied when the man and piston are compressing it as mgh. i suppose the h will give me the distance it compresses but i have nothing to equate mgh to...
can someone help me out here