A rigid tank contains air at 1.5 bar and 600C. The pressure of air is raised
to 2.5 bar by transfer if heat from a constant temperature reservoir at
4000C. The temperature of the surroundings is 270C. Determine per kg of
air, the loss of available energy due to heat transfer.
final pressure will be
p=vt
=
=
final temperature will be
t=p/v
=
heat transfer will be
=0.165 answer
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