Physics, 23.03.2020 17:09 Harriche

A cylinder with a movable piston contains 5.00 liters of a gas at 30°C and 5.00 bar. The piston is slowly moved to compress the gas to 8.80 bar.

a. Considering the system to be the gas in the cylinder and neglecting Δ E p, write and simplify the closed-system energy balance. Do not assume that the process is isothermal in this part.

b. Suppose now that the process is carried out isothermally, and the compression work done on the gas equals 7.65 L·bar. If the gas is ideal so that Uˆ is a function only of T T, how much heat (in joules) is transferred to or from (state which) the surroundings? (Use the gas-constant table in the back of the book to determine the factor needed to convert L⋅bar to joules.)

c Suppose instead that the process is adiabatic and that U^increases as T increases. Is the final system temperature greater than, equal to, or less than 30∘C? (Briefly state your reasoning.)

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 15:00, abbeygrace13

The optimistic view of human nature held by supporters of the humanistic perspective led to more positive views of human nature throughout the field of psychology. t or f?

Answers: 2

continue

Physics, 21.06.2019 18:50, NycLife

How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

Answers: 1

continue

Physics, 21.06.2019 23:30, 20calzoy

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Answers: 1

continue

Physics, 22.06.2019 02:30, mhurtado143

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Answers: 2

continue

You know the right answer?

A cylinder with a movable piston contains 5.00 liters of a gas at 30°C and 5.00 bar. The piston is s...