Physics education research, electronic materials, and the musings of Christopher Moore, Ph.D.

i have 1 cm3 of water in a piston of 1cm2 area

i evaporate the water at atmospheric pressure, piston expands to a volume of 1 liter

now the weightless piston has rise to 10 m since the water has expanded 1000 times

i fix the piston to the top and the bottom conect it to the sea

as the steam inside cools down its volume turns again to 1 cm3 with which a vacuum appear

this vacuum is filled by a column of water 10 m high with an area of 1 cm2, a 1 kg column with the cog at 5 m high

so with this cycle by evaporating i cm3 of water i lift 1 kg of water 5 m

now how do you calculate the jules that 1 kg has at 5 m?

and how many joules would be necesary to evaporate 1 cm3 of water at atm pressure?

thanks in adavnce

edit

i just found out it has an eficiency of 5 %

Last edited by luxtpm (2009-06-28 17:37:51)