1. Modified Problem 6.47 from the text: An insulated box is initially divided into halves by a frictionless, thermally conducting piston. On one side of the piston is 1.0 m'

of air at 400K, 3 bar.On the other side is 1.0m of air at 300 K, 1.5 bar. The piston is released and equilibrium is attained.Using the ideal gas model for air determine: a) The final temperature of the air, in K b) The final pressure of the air in bar c) The motion of the piston, assuming a cross sectional area of 0.35 m? d) The amount of entropy produced in kJ/K.