Question

When gas expands in a cylinder with radius r, the pressure P at any given time is a function of the volume V: P = P(V). The force exerted by the gas on the piston (see the figure) is the product of the pressure and the area: F = ner2p. The work done by the gas when the volume expands from volume V1 to volume V2 is W. W= = POV V piston head In a steam engine the pressure and volume of steam satisfy the equation pv1.4 k, where k is a constant. (This is true for adiabatic expansion, that is, expansion in which there is no heat transfer between the cylinder and its surroundings.) Calculate the work w done by the engine during a cycle when the steam starts at a pressure of 160 lb/in2 and a volume of 100 in3 and expands to a volume of 500 in). (Round your answer to three significant digits.) W = 30084.3 X ft-lb

please do both and make sure it's correct. I really need help and i have gotten the wrong answer twice.

Answer 1

As per the latest HOMEWORKLIB RULES, we are

allowed to answer only first question, rather

I have answered both questions for you.

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