Bill is driving a very old car with a hood designed to be rigid in a crash. Linda is driving a new car with a hood designed to crumple in a crash. Both have the same mass and are wearing
seat belts. In a head-on collision at the same speed with a stationary wall, which driver will
experience greater force?

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)