Answer:48 %
Explanation:
Given
outside temperature [tex]=25^{\circ}\approx 298 K[/tex]
Internal temperature[tex]=300^{\circ}\approx 573 K[/tex]
Maximum efficiency is carnot efficiency which is given by
[tex]\eta =1-\frac{T_L}{T_H}[/tex]
[tex]\eta =1-\frac{298}{573}[/tex]
[tex]\eta =\frac{275}{573}=0.4799[/tex]
i.e. [tex]47.99 %\approx 48 %[/tex]
No it is not possible to achieve this efficiency because carnot engine is the ideal engine so practically it is not possible but theoretically it is possible
