A car of mass 1000kg is driven from its initial state with uniform
acceleration and reaches a speed of
30km/h in 10sec. Find: (i) force
exerted by the engine (ii) the power
in kilowatts (kw).

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.