What is change in potential energy of the piston and weight

Reference no: EM13341586

A gas is confined in a 0.47-m diameter cylinder by a piston, on which rests a weight. The combined mass of the piston and weight is 150 Kg. The local acceleration of gravity is 9.813 m/s 2 , and the atmospheric pressure is 101.57 kPa.

a) What is the force (in Nt) exerted on the gas by the piston, the weight and the atmosphere combined? Neglect friction between the piston and the cylinder.

b) If friction was not negligible, would the force of part (a) be smaller or larger? Explain.

c) What is the pressure of the gas in kPa?

d) If the gas is heated, it expands, pushing the piston and weight upwards. If the piston and weight are raised by 0.83 m, what is the work done by the gas in kJ?

e) What is the change in potential energy of the piston and weight?

Reference no: EM13341586

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