(Power Cycle)​ Your new boss announces at a team meeting that she has developed atechnology that will perform a power cycle that operates between hot and cold reservoirs at 902 °C and 22 °C that produces a power output of 28 kW while receiving 150,000 kJ/hof energy via heat transfer from the hot reservoir. You are suspicious that this cyclesounds too good to be true, so you decide to check. What do you find

Relax

Respuesta :

Answer:

answered

Explanation:

The maximum possible efficiency is  

[tex]\eta= 1-\frac{T_L}{T_H}[/tex]

[tex]\eta= 1-\frac{295}{1175}[/tex]

= 0.7489

W_out= 28 KW

Q_in= 15000/3600= 41.67 KW

now

[tex]\eta= \frac{W_out}{Q_H}[/tex]

[tex]\eta= \frac{28}{41.67}[/tex] =0.6791

which is less than [tex]\eta_{max}[/tex]

claim is true