Thermodynamics Rankine cycle?

A Rankine cycle which uses water as the working fluid operates its condenser at 50F and its boiler at 600F. calculate the specific work (btu/lbm) produced by the turbine, the specific heat (btu/lbm) produced by its turbine, the specific heat (btu/lbm) added in the boiler, the net thermal efficiency of the net thermal efficiency of this cycle when the steam enters the turbine without any super-heating.