Calculate Delta U, Delta H, q and w when 1 mol of Ar at 25 C...
Calculate Delta U, Delta H, q and w when 1 mol of Ar at 25 C is allowed to expand isothermally from 3 atm to 1 atm a) reversibly and b) irreversibly against a constant external pressure of 1 atm.
Homework Answers
Consider one mole of an ideal gas at 25.0degree C. Calculate q, w, delta E, delta...
Consider one mole of an ideal gas at 25.0degree C. Calculate q, w, delta E, delta H, delta S, and delta G for the expansion of this gas isothermally and irreversibly from 2.45 times 10^-2 atm to 2.45 times 10^-3 atm in one step. Calculate q, w, delta E, delta H, delta S, and delta G for the same change of pressure as in part (a) but performed isothermally and reversibly. Calculate q, w, delta E, delta H, delta S,...
study o OT-O expanded isothermally at 25°C from 24 2 dm3 to 48 4 dm according...
study o OT-O expanded isothermally at 25°C from 24 2 dm3 to 48 4 dm according to the three processes described below For (b) A sample consisting of 1 00 mol of the molecules in air is 2each of the three processes calculate w q. AU, and AH Reversibly, () (5) (n) Against a constant external pressure (irreversibly) equal to the final pressure of the gas, and (m) Freely (against zero external pressure) (6) (1)
study o OT-O expanded isothermally...
A piston containing 0.75 moles of a perfect gas at 25 degrees C is moved isothermally...
A piston containing 0.75 moles of a perfect gas at 25 degrees C
is moved isothermally from a starting volume of 8.305 L.
Calculate the work in joules if the piston is moved irreversibly
against a constant external pressure of 4.100 atm. We weren't
giving final volume so I am unsure of what to do. I tried to use
P1V1 = P2V2 because the final pressure is equal to external
pressure in an irreversible process. But then my final volume...
Suppose that we allow 3.50 mol of an ideal gas with Cv=5R/2 to expand isothermally and...
Suppose that we allow 3.50 mol of an ideal gas with Cv=5R/2 to expand isothermally and reversibly from 100 atm, 10 L to 10.0 atm and then the gas is allowed to expand adiabatically and reversibly to a final pressure of 1.00 atm. Calculate q, w, ΔU and ΔH for each step and the total values for the two steps. Suppose now that the processes are carried out irreversibly with pressure dropping discontinuously from 100 atm to 10.0 atm in...
Consider a system consisting of 3.0 mol CO2(g), initially at 35°C and 9.0 atm and confined...
Consider a system consisting of 3.0 mol CO2(g), initially at 35°C and 9.0 atm and confined to a cylinder of cross-section 100.0 cm2. The sample is allowed to expand irreversibly and adiabatically against an external pressure of 2.5 atm until the piston has moved outwards through 25 cm. Assume that carbon dioxide may be considered a perfect gas with CV,m = 28.8 J K–1 mol–1, and calculate (a) q, (b) w, (c) ΔU, (d) ΔT, (e) ΔS.
4. (25pts) 20L nitrogen gas is compressed in a tank at 10 bar and 25°C. Calculate the maximum work (in joules) that can be obtained when the gas is allowed to expand reversibly to a pressure of 1...
4. (25pts) 20L nitrogen gas is compressed in a tank at 10 bar and 25°C. Calculate the maximum work (in joules) that can be obtained when the gas is allowed to expand reversibly to a pressure of 1 bar; (a) (10pts) isothermally (b) (15pts) adiabatically The molar heat apacity of nitrogen at constant volume is 20.8 J/K mol. Assume that nitrogen behaves as an ideal gas
4. (25pts) 20L nitrogen gas is compressed in a tank at 10 bar and...
7.1.00 mol of an ideal gas at 27°C is expanded isothermally from an initial pressure of...
7.1.00 mol of an ideal gas at 27°C is expanded isothermally from an initial pressure of 3.00 atm to a final pressure of 1.00 atm in two ways: (a) reversibly; (b) against a constant external pressure of 1.00 atm Determine the values of ASsys, ASsur, AStot. Hint, you may need to begin by computing other functions such as q, w, AH etc. The temperature of the surroundings equals the temperature of the system.
For the following processes, calculate the indicated quanti- ties for a system consisting of 1 mol...
For the following processes, calculate the indicated quanti- ties for a system consisting of 1 mol of N2 gas. Assume ideal gas behavior. a. The gas, initially at 10 bar, is expanded tenfold in volume against a constant external pressure of 1 bar, all at 298 K. Calculate q, w, ?U and ?H for the gas. b. After the expansion in part (a), the volume is fixed, and heat is added until the temperature reaches 373 K. Calculate q, w,...
3. A sample of 3.0 mole of a perfect gas at 25 °C expands from 5.0...
3. A sample of 3.0 mole of a perfect gas at 25 °C expands from 5.0 L to 15.0 L. How much are the entropy changes of the system and the surroundings, and the total change in entropy in the following processes: (a) the gas expands reversibly and isothermally; (b)the gas expands isothermally but irreversibly against an external pressure of zero (Pex= 0), and (c) the gas expands adiabatically and reversibly. (20 pts)
12. Calculate q, w, ∆U, and ∆H when 50 g of O2(g) initially at a pressure...
12. Calculate q, w, ∆U, and ∆H when 50 g of O2(g) initially at a pressure of 1 bar and volume of 42 L is compressed reversibly and adiabatically to a pressure of 5 bar and volume of 16 L.
Consider one mole of an ideal gas at 25.0degree C. Calculate q, w, delta E, delta H, delta S, and delta G for the expansion of this gas isothermally and irreversibly from 2.45 times 10^-2 atm to 2.45 times 10^-3 atm in one step. Calculate q, w, delta E, delta H, delta S, and delta G for the same change of pressure as in part (a) but performed isothermally and reversibly. Calculate q, w, delta E, delta H, delta S,...
study o OT-O expanded isothermally at 25°C from 24 2 dm3 to 48 4 dm according to the three processes described below For (b) A sample consisting of 1 00 mol of the molecules in air is 2each of the three processes calculate w q. AU, and AH Reversibly, () (5) (n) Against a constant external pressure (irreversibly) equal to the final pressure of the gas, and (m) Freely (against zero external pressure) (6) (1)
study o OT-O expanded isothermally...
A piston containing 0.75 moles of a perfect gas at 25 degrees C
is moved isothermally from a starting volume of 8.305 L.
Calculate the work in joules if the piston is moved irreversibly
against a constant external pressure of 4.100 atm. We weren't
giving final volume so I am unsure of what to do. I tried to use
P1V1 = P2V2 because the final pressure is equal to external
pressure in an irreversible process. But then my final volume...
4. (25pts) 20L nitrogen gas is compressed in a tank at 10 bar and 25°C. Calculate the maximum work (in joules) that can be obtained when the gas is allowed to expand reversibly to a pressure of 1 bar; (a) (10pts) isothermally (b) (15pts) adiabatically The molar heat apacity of nitrogen at constant volume is 20.8 J/K mol. Assume that nitrogen behaves as an ideal gas
4. (25pts) 20L nitrogen gas is compressed in a tank at 10 bar and...
7.1.00 mol of an ideal gas at 27°C is expanded isothermally from an initial pressure of 3.00 atm to a final pressure of 1.00 atm in two ways: (a) reversibly; (b) against a constant external pressure of 1.00 atm Determine the values of ASsys, ASsur, AStot. Hint, you may need to begin by computing other functions such as q, w, AH etc. The temperature of the surroundings equals the temperature of the system.
3. A sample of 3.0 mole of a perfect gas at 25 °C expands from 5.0 L to 15.0 L. How much are the entropy changes of the system and the surroundings, and the total change in entropy in the following processes: (a) the gas expands reversibly and isothermally; (b)the gas expands isothermally but irreversibly against an external pressure of zero (Pex= 0), and (c) the gas expands adiabatically and reversibly. (20 pts)
Most questions answered within 3 hours.
-
For this exercise, round all regression parameters to three
decimal places.
One of the two tables...
asked 17 minutes ago -
What is the 5% level of significance for mean = 3.60, standard
deviation = 0.94, and...
asked 21 minutes ago -
Prior to beginning work on this discussion, please read the
article by Hayley Peterson, 15 Companies...
asked 50 minutes ago -
Which pair of aqueous solutions, when mixed, will form a
precipitate?
A) NaNO3 and AgC2H3O2
B)...
asked 1 hour ago -
1-Write an algorithm to get two numbers from the user (as
inputs) and calculate the sum...
asked 4 hours ago -
Define white-collar crime. What is the difference between
offender and offense-based definitions of white-collar crime? What...
asked 5 hours ago -
Consider a reaction which is 1st order with respect to A and 1st
order with respect...
asked 5 hours ago -
c++
The length of the hypotenuse of a right-angled triangle is the
square root of the...
asked 5 hours ago -
When a metal rod is heated, not only its resistance but also its
length and cross‐sectional...
asked 5 hours ago -
write a c++ program that computes the L^1 - Norm of a given
vector (L^1 norm...
asked 5 hours ago -
A manufacturer of banana chips would like to know whether its
bag filling machine works correctly...
asked 5 hours ago -
Complete the chapter case, "Turnover Analysis".
Chapter Case
Turnover Analysis
You recently completed your company’s new...
asked 5 hours ago