The john hancock center in chicago is the tallest in the united state's in which there are residential apartments. the hancock center is 343m tall. suppose a resident accidentally causes a chuck of ice to fall from the roof. what would be the velocity of the ice as it hits the ground? neglect air resistance.

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.