Aweightlifter can lift 220lbs. (assume 1kg weighs 2.2lbs) if he lifts the weight 2m above the floor, how much work did he do? follow up: if the weightlifter lifts the weight 1.2 seconds, how much power does he generate?

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.