1. An accumulator under a pressure of 10MPa is reduced in volume from 0.04 m3 to 0.03 m3 while the temperature increases from 40°C to 180°C. Determine the final pressure.
2. When an oscillating load comes to a stop at mid stroke, the charge gas in an accumulator expands from 180 in.3 to 275 in.3 and cools from 200°F to 100°F. If the resulting pressure in the accumulator is 1000 psig, calculate the charge gas pressure.