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A cylinder contains oxygen gas at a pressure of 2.20 atm. The volume is 6.00L, and the temperature is 300K Assume that the oxygen may be treated as an ideal gas. The oxygen is carried through the following processes:
(1) Heated at constant pressure from the initial state (state 1) to state 2, which has 440 K
(2) Cooled at constant volume to 250K (state 3).
(3) Compressed at constant temperature to a volume of 6.00 L (state 4).
(4) Heated at constant volume to 300K, which takes the system back to state 1.
For the life of me I cannot figure this problem out.
I filled out the table, getting 1.) 2.2atm, 6L, 300k, 2.) 2.2atm, 8L, 440K, 3.) 1.375atm, 8L,250k, 4.) 1.833atm, 6L, 250K
I also calculated the number of moles using the PV=nRT with the initial information in the problem and got .5362
From this I followed the sheet that is given on exams and plugged in the correct formulas for constant V,P, and T. And for work for Constant Pressure, I changed the 2.2 atm to Pa (by multiplying 101,325*2.2) and changed the liters to m^3 by dividing them by 1000.
Anyways, for my Q values I got -2005.3677, 2115.726, 320.465, and -556.97775. When I input them in, it says that Q2 is not quite; however I have calculated it multiple times. Also, it says my work is incorrect for Part B, and I have also recalculated them several times and gotten relatively close values.
Any help is appreciated!
(1) Heated at constant pressure from the initial state (state 1) to state 2, which has 440 K
(2) Cooled at constant volume to 250K (state 3).
(3) Compressed at constant temperature to a volume of 6.00 L (state 4).
(4) Heated at constant volume to 300K, which takes the system back to state 1.
For the life of me I cannot figure this problem out.
I filled out the table, getting 1.) 2.2atm, 6L, 300k, 2.) 2.2atm, 8L, 440K, 3.) 1.375atm, 8L,250k, 4.) 1.833atm, 6L, 250K
I also calculated the number of moles using the PV=nRT with the initial information in the problem and got .5362
From this I followed the sheet that is given on exams and plugged in the correct formulas for constant V,P, and T. And for work for Constant Pressure, I changed the 2.2 atm to Pa (by multiplying 101,325*2.2) and changed the liters to m^3 by dividing them by 1000.
Anyways, for my Q values I got -2005.3677, 2115.726, 320.465, and -556.97775. When I input them in, it says that Q2 is not quite; however I have calculated it multiple times. Also, it says my work is incorrect for Part B, and I have also recalculated them several times and gotten relatively close values.
Any help is appreciated!