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Answer is ( a ) : True
Explanation - Joule Thomson Coefficient depends on the type of gas and on the temperature and pressure of the gas before expansion. If the gas temperature is below the inversion temperature then JT coefficient is positive (+ve) , and when the gas temperature is above the inversion temperature then JT coefficient is negative (-ve) .
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1. The sign (+ve or -ve) of the Joule- Thompson coefficient, u, for real gas depends...
1. Mark with T (True) or F (False) (2 points each) • A Joule Thompson experiment...
1. Mark with T (True) or F (False) (2 points each) • A Joule Thompson experiment corresponds to a process with constant enthalpy • The state functions (U.H.G.A) act as thermodynamic potentials when represented as functions of their natural variables. • The Gibbs free energy is equal to the maximum PV work done by the system on the envi ronment • The standard enthalpy of formation for any pure element in its reference state is temperature dependent • The phase...
For a gas following V= RT/P + (b - a/RT) what is the inversion temperature of the Joule-Thomson coefficient? Below the i...
For a gas following V= RT/P + (b - a/RT) what is the inversion
temperature of the Joule-Thomson coefficient? Below the inversion
temperature (where mu_JT = 0), what is the sign of mu_JT? does this
imply heating or cooling?
B) For a gas following v = BI+ (b-) what is the inversion bemperature for the Most = T (Jl. - V Joule Thomson coefficient (2)? Cp Below the inversion temperature (where Matod, what is the sign of Maga? Does this...
Q1. For steady-state flow through a throttling valve with negligible changes in kinetic and potential energies, the...
Q1. For steady-state flow through a throttling valve with negligible changes in kinetic and potential energies, the isenthalpic variation of temperature with pressure is known as the Joule- Thomson coefficient, μ. a) Write the energy balance and starting from the change for enthalpy (02 in your notes), show that the Joule-Thomson coefficient is given by: b) The throttling process may lead to an increase or decrease in temperature depending on the value of μ, ie, 0 Temperature decreases on throttling...
Decide which of the following statements are true and which are false. True Real gas molecules...
Decide which of the following statements are true and which are false. True Real gas molecules have a volume and exert attractive forces on one another. False As temperature increases, the average kinetic energy of a sample of gas molecules decreases. False In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the O2(g) sample must be at a higher temperature than the H2(g) sample. False At constant temperature, the lighter the...
In what condition a real gas behaves like ideal gas?
22- In what condition a real gas behaves like ideal gas? a) High pressure, high temperature b) High pressure, low temperature c) low pressure, low temperature d) low pressure, high temperature 23- Which of the following statements are true? a) σ bonds form from side to side overlap of atomic orbitals b) TT bonds form from side to side overlap of atomic orbitals c) σ bonds form from head to head overlap of atomic orbitals d) TT bonds form from head to head overlap of atomic orbitals e) Both b...
Problem I (40 pts): Simplify and evaluate the following thermodynamic quantities for an ideal gas (assuming...
Problem I (40 pts): Simplify and evaluate the following thermodynamic quantities for an ideal gas (assuming n-1.0 mole, T-300 K, and P-0.1 MPa). a) (10 pts) The Joule-Thompson coefficient (1) ar ОР V(Tap-1) H b) (10 pts) The isobaric thermal expansion coefficient (AP) c) (10 pts) The isothermal compressibility (KT) d) (10 pts) The heat capacity at constant pressure (C)
4. You are asked to perform thermodynamic analysis for a real gas that obeys the following...
4. You are asked to perform thermodynamic analysis for a real gas that obeys the following equation of state: aP where "a" and "b" are constants (the numerical value of these constants is not important for this problem). You also know that the real gas has the following molar heat capacity, which you can assume depends only on the temperature: Cpm = A + BT with T in kelvin. Also, 2aPaP2 Note that, since the gas is real, the relationship...
a. Superheated R-134a is throttled from state 1 at 600 kPa (0.6 MPa) and 120°C to...
a. Superheated R-134a is throttled from state 1 at 600 kPa (0.6 MPa) and 120°C to a pressure of 500 kPa (state 2). Find the temperature at state 2. b. Calculate the Joule-Thompson coefficient of R-134a at 600 kPa (0.6 MPa) and 120°C. c. Does your coefficient from b agree with your results from a?
Part B Check all the correct statements. Note: Push yourself to understand why these statements are...
Part B Check all the correct statements. Note: Push yourself to understand why these statements are true or false. If false think about an example that contradicts the statement, or think about how you would formulate the statement so it is correct. You will n you can answer a similar question that is formulated differently The internal energy of any gas (ie. not necessarily ideal) depends only the temperature of the system The kinetic energy of any gas (i.e. not...
Please answer true or false and explain why for each of them. Thank you 1. Mark...
Please answer true or false and explain why for each of them.
Thank you
1. Mark with T (True) or F (False) (2 points each) • Joule Thompson experiment corresponds to process with constant enthalpy. . The state functions (U.H,G,A) act as thermodynamic potentials when represented as functions of their natural variables. • The Gibbs free energy is equal to the maximum PV work done by the system on the envi- ronment. . The standard enthalpy of formation for any...
1. Mark with T (True) or F (False) (2 points each) • A Joule Thompson experiment corresponds to a process with constant enthalpy • The state functions (U.H.G.A) act as thermodynamic potentials when represented as functions of their natural variables. • The Gibbs free energy is equal to the maximum PV work done by the system on the envi ronment • The standard enthalpy of formation for any pure element in its reference state is temperature dependent • The phase...
For a gas following V= RT/P + (b - a/RT) what is the inversion
temperature of the Joule-Thomson coefficient? Below the inversion
temperature (where mu_JT = 0), what is the sign of mu_JT? does this
imply heating or cooling?
B) For a gas following v = BI+ (b-) what is the inversion bemperature for the Most = T (Jl. - V Joule Thomson coefficient (2)? Cp Below the inversion temperature (where Matod, what is the sign of Maga? Does this...
Q1. For steady-state flow through a throttling valve with negligible changes in kinetic and potential energies, the isenthalpic variation of temperature with pressure is known as the Joule- Thomson coefficient, μ. a) Write the energy balance and starting from the change for enthalpy (02 in your notes), show that the Joule-Thomson coefficient is given by: b) The throttling process may lead to an increase or decrease in temperature depending on the value of μ, ie, 0 Temperature decreases on throttling...
Decide which of the following statements are true and which are false. True Real gas molecules have a volume and exert attractive forces on one another. False As temperature increases, the average kinetic energy of a sample of gas molecules decreases. False In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the O2(g) sample must be at a higher temperature than the H2(g) sample. False At constant temperature, the lighter the...
Problem I (40 pts): Simplify and evaluate the following thermodynamic quantities for an ideal gas (assuming n-1.0 mole, T-300 K, and P-0.1 MPa). a) (10 pts) The Joule-Thompson coefficient (1) ar ОР V(Tap-1) H b) (10 pts) The isobaric thermal expansion coefficient (AP) c) (10 pts) The isothermal compressibility (KT) d) (10 pts) The heat capacity at constant pressure (C)
4. You are asked to perform thermodynamic analysis for a real gas that obeys the following equation of state: aP where "a" and "b" are constants (the numerical value of these constants is not important for this problem). You also know that the real gas has the following molar heat capacity, which you can assume depends only on the temperature: Cpm = A + BT with T in kelvin. Also, 2aPaP2 Note that, since the gas is real, the relationship...
a. Superheated R-134a is throttled from state 1 at 600 kPa (0.6 MPa) and 120°C to a pressure of 500 kPa (state 2). Find the temperature at state 2. b. Calculate the Joule-Thompson coefficient of R-134a at 600 kPa (0.6 MPa) and 120°C. c. Does your coefficient from b agree with your results from a?
Part B Check all the correct statements. Note: Push yourself to understand why these statements are true or false. If false think about an example that contradicts the statement, or think about how you would formulate the statement so it is correct. You will n you can answer a similar question that is formulated differently The internal energy of any gas (ie. not necessarily ideal) depends only the temperature of the system The kinetic energy of any gas (i.e. not...
Please answer true or false and explain why for each of them.
Thank you
1. Mark with T (True) or F (False) (2 points each) • Joule Thompson experiment corresponds to process with constant enthalpy. . The state functions (U.H,G,A) act as thermodynamic potentials when represented as functions of their natural variables. • The Gibbs free energy is equal to the maximum PV work done by the system on the envi- ronment. . The standard enthalpy of formation for any...
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