A system consisting of 0.0387 moles of a diatomic ideal gas is taken from state A to state C along the path in the figure below. Point A (2 L, 3 atm) --> point B (2 L, 8 atm) --> point C (8 L, 6 atm). (A) How much work is done on the gas during this process?
(B) What is the lowest temperature of the gas during this process?
(C) Find the change in internal energy of the gas in going from A to C. Hint: Adapt the equation (for the change in internal energy of a monatomic ideal gas)
(D) (d) Find the energy delivered to the gas in going from A to C.

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.