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23 Nov 2019
A cylinder contains oxygen gas O2 at a pressure of2.20 atm. The volume is 6.00 L, and thetemperature is 300 K. Assume that the oxygen may betreated as an ideal gas. The oxygen is carried through thefollowing processes:
(1) Heated at constant pressure from the initial state (state 1) tostate 2, which has 460 K.
(2) Cooled at constant volume to 250 K (state3).
(3) Compressed at constant temperature to a volume of6.00 L (state 4).
(4) Heated at constant volume to 300 K, which takesthe system back to state 1.
Calculate Q for each of the four processes (in J). Theprocesses are Q1->2, Q2->3, Q3->4, Q 4->1.
Calculate W for each of the four processes (in J). Calculate the net work done by the oxygen (in J). What is the efficiency of this device as a heat engine (inJ)?
A cylinder contains oxygen gas O2 at a pressure of2.20 atm. The volume is 6.00 L, and thetemperature is 300 K. Assume that the oxygen may betreated as an ideal gas. The oxygen is carried through thefollowing processes:
(1) Heated at constant pressure from the initial state (state 1) tostate 2, which has 460 K.
(2) Cooled at constant volume to 250 K (state3).
(3) Compressed at constant temperature to a volume of6.00 L (state 4).
(4) Heated at constant volume to 300 K, which takesthe system back to state 1.
(1) Heated at constant pressure from the initial state (state 1) tostate 2, which has 460 K.
(2) Cooled at constant volume to 250 K (state3).
(3) Compressed at constant temperature to a volume of6.00 L (state 4).
(4) Heated at constant volume to 300 K, which takesthe system back to state 1.
Calculate Q for each of the four processes (in J). Theprocesses are Q1->2, Q2->3, Q3->4, Q 4->1.
Calculate W for each of the four processes (in J).
Calculate the net work done by the oxygen (in J).
What is the efficiency of this device as a heat engine (inJ)?
