0.0017-lbm of air/fuel mixture burns
in a piston/cylinder device, releasing a total of 0.61Btu of heat. This
occurs during an isometric process where the starting pressure is 71-psia and
the starting temperature is 811ºR. Find the final pressure using an
air-standard analysis of this process.
your answer with one-decimal place accuracy in psia. Don’t include units with