Areversible power cycle whose thermal efficiency is 43% receives 50 kj by heat transfer from a hot reservoir at 300oc and rejects energy by heat transfer to a cold reservoir at temperature tc. determine the energy rejected, in kj, and tc, in oc. determine the entropy production for the cycle, σcycle, in kj/k.

To solve this problem it is necessary to take into account the Efficiency values in the energy cycles.

Efficiency can be defined as,

Where,

Q = Heat Exchange

T = Temperature

The efficiency for this system is 0.43 then,

Re-arrange to find

And the temperature would be given as,

The entropy would be given as

it doesn't. it was imagined up in the middle ages.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min