Answer:
[tex]\eta_{max} = 70%[/tex]
Explanation:
given data:
maximum temperature = 727 degree C =727 +273 = 1000 K
Minimum temperature = 27 degree C = 27 +273 = 300 K
Maximum efficiency is given as [tex]\eta[/tex]
[tex]\eta = \frac{T_{max} - T_{min}}{T_{max}} *100%[/tex]
plugging all value from the above to get maximum efficiency
[tex]\eta = \frac{1000-300}{1000} *100%[/tex]
[tex]\eta_{max} = 70%[/tex]
