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of surroundings and total when 050 mol 3. Calculate the change in the entropy the system,...
Calculate the change in total entropy of system and surroundings for a isothermal irreversible expansion of...
Calculate the change in total entropy of system and surroundings for a isothermal irreversible expansion of 1.9 mol of a perfect gas from 7.3 L to 18.4 L against a constant external pressure of 1.9 bar at 298 K. Answer is 7.5 but I want to understand how to get to that answer.
Assume there's 1 mol ideal mono-atomic gas in a 22.4L container at 300K. The initial entropy...
Assume there's 1 mol ideal mono-atomic gas in a 22.4L container
at 300K. The initial entropy of the system is 100J/K. For the
following processes, calculate:
a) q and w for a reversible expansion to twice the volume,
isothermally.
b)
S and
G for irreversible isothermal expansion against a constant 0.5 bar
external pressure, to a final internal pressure of 0.5 bar.
c)
U and
H for adiabatic reversible expansion to twice the volume.
Calculate the entropy change of the system for a reversible and irreversible isothermal compression of oxygen...
Calculate the entropy change of the system for a reversible and irreversible isothermal compression of oxygen gas. The initial pressure of the gas is 1 bar in a volume of 100 L. The final pressure of the gas is 10 bar and the temperature is 400 K.
Calculate the change in entropies (a) ΔS of the system
Calculate the change in entropies (a) ΔS of the system, (b) ΔSgurr of the surroundings, and (c) ΔSuni of the universe when a sample of 0.75 mol of Cl2(g) at 298 K and 1.00 bar doubles its volume in an isothermal reversible expansion. The walls of the container are diathermal (i. e. , they are thermally conducting). Assume that under these conditions Cl2(g) behaves as an ideal gas.
Write expressions in terms of the temperature T1, T2, T3, and T4 for the entropy change in each s...
Write expressions in terms of the temperature T1, T2, T3, and T4 for the entropy change in each step of the following process for an ideal monatomic gas: a) Reversible adiabatic expansion from T1P1V to T2P2V' b) Irreversible heating at constant volume from T2P2V' to T3P3V' c) Reversible adiabatic compression from T3P3V' to T4P4V d) Irreversible cooling at constant volume from T4P4V to T1P1V. Prove that the total entropy change for the cycle is 0. Please provide explanation, work, and...
markah) Calculate the entropy change of the system and the surroundings for the isothermal freezing of...
markah) Calculate the entropy change of the system and the surroundings for the isothermal freezing of 1 mol of supercooled liquid copper at 900 °C when the surroundings are also at the same temperature. Assume that C, for liquid copper also holds good for supercooled liquid copper. Kirakan perubahan entropi sistem dan persekitaran untuk pembekuan isoterma bagi 1 mol cecair super-dingin tembaga pada suhu 900 °C apabila persekitaran mempunyai suhu yang sama. Andaikan Cp untuk cecair tembaga juga boleh digunapakal...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
A sample of 1.00 mol perfect gas molecules
A sample of 1.00 mol perfect gas molecules with Cp,m = 7/2 R is put through the following cycle:(a) Constant-volume heating to twice its initial volume,(b) Reversible, adiabatic expansion back to its initial temperature,(c) Reversible isothermal compression back to 1.00 atm. Calculate q, w, ?U, and ?H for each step and overall.
(3). A sample of 1.00 mol ideal gas molecules with Com= 7/2 R is initially at...
(3). A sample of 1.00 mol ideal gas molecules with Com= 7/2 R is initially at p = 1.00 bar and V = 22.44 L and then put thought the following cycle in reversible processes: (a) constant-pressure expansion to twice its initial volume, (b) constant volume cooling to its initial temperature, (c) isothermal-compression back to 1.00 bar. Calculate q, w, AU, AH, AS for each process and for the whole cycle. (20 pts)
This question asks: Calculate the change in entropy that occurs in the system when 1.00 mol...
This question asks: Calculate the change in entropy that occurs in the system when 1.00 mol of methanol (CH3OH) vaporizes from a liquid to a gas at its boiling point (64.6 degrees Celcius). For methanol, enthalpy of vaporization = 35.21 kJ/mol I'm getting the correct answer (104) but I'm getting a negative for some reason, and the book says it's positive, but the formula changeinEntropy = -enthalpy of system/T, so why isn't this number negative?
Assume there's 1 mol ideal mono-atomic gas in a 22.4L container
at 300K. The initial entropy of the system is 100J/K. For the
following processes, calculate:
a) q and w for a reversible expansion to twice the volume,
isothermally.
b)
S and
G for irreversible isothermal expansion against a constant 0.5 bar
external pressure, to a final internal pressure of 0.5 bar.
c)
U and
H for adiabatic reversible expansion to twice the volume.
markah) Calculate the entropy change of the system and the surroundings for the isothermal freezing of 1 mol of supercooled liquid copper at 900 °C when the surroundings are also at the same temperature. Assume that C, for liquid copper also holds good for supercooled liquid copper. Kirakan perubahan entropi sistem dan persekitaran untuk pembekuan isoterma bagi 1 mol cecair super-dingin tembaga pada suhu 900 °C apabila persekitaran mempunyai suhu yang sama. Andaikan Cp untuk cecair tembaga juga boleh digunapakal...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
(3). A sample of 1.00 mol ideal gas molecules with Com= 7/2 R is initially at p = 1.00 bar and V = 22.44 L and then put thought the following cycle in reversible processes: (a) constant-pressure expansion to twice its initial volume, (b) constant volume cooling to its initial temperature, (c) isothermal-compression back to 1.00 bar. Calculate q, w, AU, AH, AS for each process and for the whole cycle. (20 pts)
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