Air enters a turbine operating at steady state at 6 bar, 1400 k and expands to 0.8 bar. the turbine is well insulated, and kinetic and potential energy effects can be neglected. assuming ideal gas behavior for the air, what is the maximum theoretical work that could be developed by the turbine in kj per kg of air flow? (w? cvm? )max= kj/kg

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j