For which of the following processes is the equation S = qrev /T valid?
any reversible expansion of an ideal gas.
isothermal irreversible compression of a non-ideal gas.
constant pressure heating of a liquid.
isothermal vaporization of a liquid.
isothermal sublimation of a solid to a non-ideal vapor.
Please explain the detail for each one.
Homework Answers
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For which of the following processes is the equation S = qrev
/T valid?
any reversible...
2) Construct a table (or use the one below) with 9,w, AU, AH as the headings....
2) Construct a table (or use the one below) with 9,w, AU, AH as the headings. Determine whether each of these quantities is postive, negative, or zero for five (5) of the following nine processes. (If you choose more than five, only the first five answers will be graded, so decide which five you are most confident in and only answer those.) (4 pts each. 20 pts total) 1. Freezing of acetone at 1 atm and it's normal freezing point....
15. According to the Clausius-Clapeyron equation ln va R T T P"арф) refers to the vapor...
15. According to the Clausius-Clapeyron equation ln va R T T P"арф) refers to the vapor pressure at temperature 1, R-2 cal/mol-K, and Ah is the heat of changc associated with the process of transitioning to the vapor (cither sublimation or vaporization depending on whether the transition is from solid to vapor or liquid to vapor) i.e., дН-H vapor-H , where X is either solid or liquid and H denotes the corresponding molar enthalpy. Use the Clausius-Clapeyron equation to solve...
16 5 points Which of the following processes complete the Otto thermodynamic cycle used in vehicles...
16 5 points Which of the following processes complete the Otto thermodynamic cycle used in vehicles that use gasoline as fuel: constant volume heat addition constant pressure heat addition constant pressure heat rejection to cooling tower isentropic compression of gas or vapor isentropic compression of liquid o O isentropic expansion U heat rejection by an exchange of a constant volume with ambient air 17 5 points Which of the following processes complete the Rankine steam thermodynamic cycle used in power...
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 Δq and Δw for the reversible compression at T-400 K of 1 mol of an...
Calculate Δq and Δw for the reversible compression at T-400 K of 1 mol of an ideal gas from an initial volu volume of 10 . Calculate Δq and Δw for an irreversible compression at T-400 K with a constant external pressure equal to the final pressure from an initial volume of 40 dm to a final volume of 10 dm A aae àg and hw for an
Air in a piston-cylinder assembly executes a Carnot power cycle (4 internally reversible processes, shown in...
Air in a piston-cylinder assembly executes a Carnot power cycle (4 internally reversible processes, shown in the figure below). The isothermal expansion and compression processes occur at TH 1400 K and Tc-350 K, respectively. The pressure at the beginning and end of the isothermal compression are p4-100 kPa and pi - 500 kPa, respectively Assume the ideal gas model for the air: ai 0.717 J/g.K Mair- 28.97 g/mol kpv.air 1.4 R 8.314J /(mol K) Adiabatic Isothermal expansion Adiabatic compression Gas...
Calculate G, A, and Suniv for each of the following processes and state any approximation made: ...
Calculate G, A,
and Suniv
for each of the following processes and state any approximation
made:
a) reversible melting of 36.0 g of ice at 0oC and 1
atm
b) reversible vaporization of 39 g of C6H6 at
its normal boiling point of 80.1oC and 1 atm
c) adiabatic expansion of 0.100 mol of a perfect gas into vacuum
with initial temperature of 300 K, initial volume of 2.00 L, and
final volume of 6.00 L
Densities of liquid and...
A thermodynamic cycle consists of the following reversible processes: 1-2 isothermal expansion 2-3 isentropic compression 3-1 heat rejection at constant pressure The cycle works with 1.5 kg of water v...
A thermodynamic cycle consists of the following reversible processes: 1-2 isothermal expansion 2-3 isentropic compression 3-1 heat rejection at constant pressure The cycle works with 1.5 kg of water vapor. State 1 is dry saturated steam at 200 ° C; state 2 has a pressure of 100 kPa. Determine: a) The addition of heat, b) the net work, and c) the entropy change from 1 to 2.
1 mole 2. Compute w,q, and AU for the following processes by an ideal gas: 1)...
1
mole
2. Compute w,q, and AU for the following processes by an ideal gas: 1) irreversible expansion against a constant external pressure of 2.00 atm from 5.00 L to 10.00 L at 30°C. 2) one irreversible compression using minimum external pressure to achieve the reverse process.
2. Compute w,q, and AU for the following processes by an ideal gas: 1) irreversible expansion against a constant ex...
2. Compute w,q, and AU for the following processes by an ideal gas: 1) irreversible expansion against a constant external pressure of 2.00 atm from 5.00 L to 10.00 L at 30°C. 2) one irreversible compression using minimum external pressure to achieve the reverse process.
2) Construct a table (or use the one below) with 9,w, AU, AH as the headings. Determine whether each of these quantities is postive, negative, or zero for five (5) of the following nine processes. (If you choose more than five, only the first five answers will be graded, so decide which five you are most confident in and only answer those.) (4 pts each. 20 pts total) 1. Freezing of acetone at 1 atm and it's normal freezing point....
15. According to the Clausius-Clapeyron equation ln va R T T P"арф) refers to the vapor pressure at temperature 1, R-2 cal/mol-K, and Ah is the heat of changc associated with the process of transitioning to the vapor (cither sublimation or vaporization depending on whether the transition is from solid to vapor or liquid to vapor) i.e., дН-H vapor-H , where X is either solid or liquid and H denotes the corresponding molar enthalpy. Use the Clausius-Clapeyron equation to solve...
16 5 points Which of the following processes complete the Otto thermodynamic cycle used in vehicles that use gasoline as fuel: constant volume heat addition constant pressure heat addition constant pressure heat rejection to cooling tower isentropic compression of gas or vapor isentropic compression of liquid o O isentropic expansion U heat rejection by an exchange of a constant volume with ambient air 17 5 points Which of the following processes complete the Rankine steam thermodynamic cycle used in power...
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 Δq and Δw for the reversible compression at T-400 K of 1 mol of an ideal gas from an initial volu volume of 10 . Calculate Δq and Δw for an irreversible compression at T-400 K with a constant external pressure equal to the final pressure from an initial volume of 40 dm to a final volume of 10 dm A aae àg and hw for an
Air in a piston-cylinder assembly executes a Carnot power cycle (4 internally reversible processes, shown in the figure below). The isothermal expansion and compression processes occur at TH 1400 K and Tc-350 K, respectively. The pressure at the beginning and end of the isothermal compression are p4-100 kPa and pi - 500 kPa, respectively Assume the ideal gas model for the air: ai 0.717 J/g.K Mair- 28.97 g/mol kpv.air 1.4 R 8.314J /(mol K) Adiabatic Isothermal expansion Adiabatic compression Gas...
Calculate G, A,
and Suniv
for each of the following processes and state any approximation
made:
a) reversible melting of 36.0 g of ice at 0oC and 1
atm
b) reversible vaporization of 39 g of C6H6 at
its normal boiling point of 80.1oC and 1 atm
c) adiabatic expansion of 0.100 mol of a perfect gas into vacuum
with initial temperature of 300 K, initial volume of 2.00 L, and
final volume of 6.00 L
Densities of liquid and...
1
mole
2. Compute w,q, and AU for the following processes by an ideal gas: 1) irreversible expansion against a constant external pressure of 2.00 atm from 5.00 L to 10.00 L at 30°C. 2) one irreversible compression using minimum external pressure to achieve the reverse process.
2. Compute w,q, and AU for the following processes by an ideal gas: 1) irreversible expansion against a constant external pressure of 2.00 atm from 5.00 L to 10.00 L at 30°C. 2) one irreversible compression using minimum external pressure to achieve the reverse process.
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