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output=1.7*4.19*(375-313)/(2.5*60)=2.914473Kw. 2.9174473/3= 0.981 or 98.1%. Thanks a lot for help could you confirm this

Homework Statement determine the thermal effieincy of a heat transfer process where the following data has been used Input=3kW 1.7 litres of water have been heated from 313K to 375K in 2.5 minutes specific heat capacity of water= 4.19kj/kgK Homework Equations Thermal efficiency=...