A steam power plant operates on the ideal Rankine cycle. In the cycle, the steam enters the turbine at 1000 psia and 1000 o F, the condenser pressure is 1 psia, and the net power produced by is 100 MW. Determine (a) the heat transfer to the water in the boiler
(b) the cycle thermal efficiency.

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?