To make 300 mL of oxygen at 20.0oC change its volume to 250 mL, what must be done to the sample if its pressure and mass are to be held constant?

Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

Current from a charged capacitor lights a bulb. as time goes on the brightness of the