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Physics, 21.01.2020 18:31 zeckwielen8205
Aheat engine is designed to do work. this is possible only if certain relationships between the heats and temperatures at the input and output hold true. which of the following sets of statements must apply for the heat engine to do work?
a) qh < qc and th < tc
b) qh > qc and th < tc
c) qh < qc and th > tc
d) qh > qc and th > tc
part b
find the work w done by the "ideal" heat engine.
express w in terms of qh and qc
w=
part c
the thermal efficiency e of a heat engine is defined as follows: e = w/qh
express the efficiency in terms of qh and qc.
e=
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