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GBA13
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Homework Statement
Hi Guys,
I did a heat engine experiment where we put a weight on a piston and moved an air cylinder in a hot water bath, then removed the weight and but the air cylinder in a cold water bath to make a heat engine cycle.
I am just wondering in the simple heat engine which would be larger, The energy transfer from heat reservoir to gas (which I think is the same as the PdV work) or the mechanical work which happens as the piston (with a weight on top) in raised.
I'm also wondering when in an engine cycle is the heat being exhausted to the atmosphere rather than to the cold reservoir?
Homework Equations
The Attempt at a Solution
I think they would actually be the same size. As it is a full cycle then internal energy = 0 so Q14 = W14.
Any help would be appreciated!
Thanks,
Mark