Homework Answers
(a) W= (coeff. max. efficiency) x (1-(Tc0/Th0))
(b.) W= (coeff. max. efficiency) x (1-(2Tc0/Th0)) ; Work done would be negative
(c.) Work Done =0 as, (coeff. max. efficiency) x (1-(Tc/Th))= 0
(d.) Work Done by heat engine will be approx. = 1 i.e; max. efficiency
Because (Tc0/Th0) value becomes negligible
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To understand what a heat engine is and its theoretical
limitations.
Ever since Hero demonstrated a crude steam turbine in ancient
Greece, humans have dreamed of converting heat into work. If a fire
can boil a pot and make the lid jump up and down, why can't heat be
made to do useful work?
A heat engine is a device designed to convert heat into work.
The heat engines we will study will be cyclic: The working
substance...
please help 1 and 2 !
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