Physics
Physics, 24.10.2020 14:13, kurtiee

Five kg of steam is contained within a piston-cylinder assembly. It undergoes an expansion from state 1, where the specific

internal energy is 1 = 2709.9 kJ/kg to state 2, where 2 =

2659.6 kJ/kg. During the process, heat is transferred to the

steam with a magnitude of 80 kJ. Also, a paddle wheel transfers

energy to the steam by work in the amount of 18.5 kJ. There is

no significant change in the kinetic or potential energy of the

steam. Determine the energy transfer by work from the steam

to the piston during the process, in kJ. Indicate whether the

work is done on or done by the system.

answer
Answers: 1

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