As shown in Fig. P6.64, an insulated box is initially divided into halves by a frictionless, thermally conducting piston. On one side of the piston is 1.5 m3 of air at 400 K, 4 bar. On the other side is 1.5 m3 of air at 400 K, 2 bar. The piston is released and equilibrium is attained, with the piston experiencing no change of state. Employing the ideal gas model for the air, determine (a) the final temperature, in K. (b) the final pressure, in bar. (c) the amount of entropy produced, in kJ/K.

Ohm’s Law Evan Deller and Charlie Rivera th January 27 , 2017 Abstract To illustrate the properties that make up Ohm’s law, an experiment was setup in order to measure the relationship between voltage, current and resistance. This was done using a series circuit combined with various resistors, a circuit, and power source. Two multi-meters were used to measure current and voltage, while resistance was given by 10 and 50 ohm resistors. Values of current and voltage were recorded for each resistor. This data served to illustrate the basis of Ohm’s law. Plugging the found data points into Ohm’s law ensured that the experiment