A perfect gas undergoes an isentropic process such that its volume doubles. If the ratio of...
A perfect gas undergoes an isentropic process such that its volume doubles. If the ratio of the specific heats,γ is equal to 1.56, and the temperature at the start of the process is 690.0 K, what is the temperature at the end of the process. Your answer should be in Kelvin to 1 dp
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A perfect gas undergoes an isentropic process such that its
volume doubles. If the ratio of...
Air undergoes an isentropic process from p1=1atm, T1=540R to a final state where the temperature is...
Air undergoes an isentropic process from p1=1atm, T1=540R to a final state where the temperature is T2=1160R. employing the ideal gas model, determine the final pressure p2, in atm. Assume a constant specific ratio k evaluated at the mean temperature.
A monatomic ideal gas at room temperature undergoes an adiabatic process such that its final pressure...
A monatomic ideal gas at room temperature undergoes an adiabatic
process such that its final pressure is 3.75 times its initial
pressure.
a) Did the gas expand or contract?
(b) What is the ratio of its final volume to its initial
volume?
A monatomic ideal gas at room temperature undergoes an adiabatic process such that its final pressure is 3.75 times its initial pressure. (a) Did the gas expand or contract? o expand o contract (b) What is the ratio...
An ideal diatomic gas undergoes 3 processes in series: process 1-2: isothermal compression from pr-100kPa and...
An ideal diatomic gas undergoes 3 processes in series: process 1-2: isothermal compression from pr-100kPa and V-0.1m2 to V0.025m; process 2-3: at constant pressure and process 3-1: isentropic process closing cycle. Determine: a) ratio of the maximum and minimum temperature of the cycle, b) heats of the processes, c) thermal efficiency of the cycle, d) sketch the processes on p-V and T-s diagrams. Gas constant is 287 J/(kgK), isentropic exponent is 1.4.
4. An ideal gas with constant specific heats undergoes a process from an initial pressure of...
4. An ideal gas with constant specific heats undergoes a process from an initial pressure of 50 kPa and initial specific volume of 4 m^3/kg to a final pressure of 80 kPa and final specific volume of 5 m^3/kg. The mass of the carbon monoxide is 3 kg. The gas has a molar mass of 44 kg/kmol and a specific heat at constant volume of 0.98 kJ/(kg∙K). Determine the entropy change of the gas during the process in kJ/K.
An ideal monatomic gas undergoes changes in pressure and volume, as shown in the pV diagram...
An ideal monatomic gas undergoes changes in pressure and volume, as shown in the pV diagram below. The initial volume is 0.02 m3 and the final volume is 0.10 m3 20 10 01 (a) Calculate the magnitude, or absolute value, of the Work done on the gas in this process. (Be careful with units. Your answer should be in Joules. 1 atm 1.013x 105 Pa.) (b)The work done ON the gas is: O positive O negative (c) The initial temperature...
An ideal-gas mixture has the following volumetric analysis component % by Volume, N2 60% and CO2...
An ideal-gas mixture has the following volumetric analysis component % by Volume, N2 60% and CO2 40%. Determine: i. the analysis on a mass basis. [6 marks] ii. the mass of 1 m3 of this gas when P 1.5 MPa and T 30°C iii. the specific heats at 300 K [12 marks] iv. the required heat transfer if the gas is heated in a steady-flow process such that the [8 marks] temperature is increased by 120°C. [12 marks] v. the...
5. Hydrogen undergoes a polytropic process with n=0.7 from an initial specific volume of 22 ft3/lb...
5. Hydrogen undergoes a polytropic process with n=0.7 from an initial specific volume of 22 ft3/lb and initial temperature of 200° F to a final specific volume of 16 ft3/lb. The entropy decrease during the process is 7.5 Btu/°R. Model the hydrogen as an ideal gas with constant specific heats. Evaluate the specific heat at 200° F. Determine the mass of the hydrogen.
Opening champagne. In a bottle of champagne, the pocket of gas (primarily carbon dioxide) between the...
Opening champagne. In a bottle of champagne, the pocket of gas (primarily carbon dioxide) between the liquid and the cork is at pressure of p = 2.98 atm. When the cork is pulled from the bottle, the gas undergoes an adiabatic expansion until its pressure matches the ambient air pressure of 1.00 atm. Assume that the ratio of the molar specific heats is γ = 4/3. If the gas has initial temperature T = 2.6°C, what is its temperature at...
Opening champagne. In a bottle of champagne, the pocket of gas (primarily carbon dioxide) between the...
Opening champagne. In a bottle of champagne, the pocket of gas (primarily carbon dioxide) between the liquid and the cork is at pressure of p = 5.30 atm, when the cork is pulled from the bottle, the gas undergoes an adiabatic expansion until its pressure matches the ambient air pressure of 1.00 atm. Assume that the ratio of the molar specific heats is γ-4/3. If the gas has initial temperature T-4.7°C, what is its temperature at the end of the...
7.5) A 1.15 -mol quantity of monatomic ideal gas undergoes the following cyclic process. The gas...
7.5) A 1.15 -mol quantity of monatomic ideal gas undergoes the
following cyclic process. The gas starts at point a at STP. It
expands isothermally to point b, where the volume is 2.2 times its
original volume. Next, heat is removed while keeping the volume
constant and reducing the pressure. Finally, the gas undergoes
adiabatic compression, returning to point a.
a. Calculate the pressures at b and c. (answers in Pa)
**Find the volumes at a and b first.
**Use...
A monatomic ideal gas at room temperature undergoes an adiabatic
process such that its final pressure is 3.75 times its initial
pressure.
a) Did the gas expand or contract?
(b) What is the ratio of its final volume to its initial
volume?
A monatomic ideal gas at room temperature undergoes an adiabatic process such that its final pressure is 3.75 times its initial pressure. (a) Did the gas expand or contract? o expand o contract (b) What is the ratio...
An ideal diatomic gas undergoes 3 processes in series: process 1-2: isothermal compression from pr-100kPa and V-0.1m2 to V0.025m; process 2-3: at constant pressure and process 3-1: isentropic process closing cycle. Determine: a) ratio of the maximum and minimum temperature of the cycle, b) heats of the processes, c) thermal efficiency of the cycle, d) sketch the processes on p-V and T-s diagrams. Gas constant is 287 J/(kgK), isentropic exponent is 1.4.
An ideal monatomic gas undergoes changes in pressure and volume, as shown in the pV diagram below. The initial volume is 0.02 m3 and the final volume is 0.10 m3 20 10 01 (a) Calculate the magnitude, or absolute value, of the Work done on the gas in this process. (Be careful with units. Your answer should be in Joules. 1 atm 1.013x 105 Pa.) (b)The work done ON the gas is: O positive O negative (c) The initial temperature...
An ideal-gas mixture has the following volumetric analysis component % by Volume, N2 60% and CO2 40%. Determine: i. the analysis on a mass basis. [6 marks] ii. the mass of 1 m3 of this gas when P 1.5 MPa and T 30°C iii. the specific heats at 300 K [12 marks] iv. the required heat transfer if the gas is heated in a steady-flow process such that the [8 marks] temperature is increased by 120°C. [12 marks] v. the...
Opening champagne. In a bottle of champagne, the pocket of gas (primarily carbon dioxide) between the liquid and the cork is at pressure of p = 5.30 atm, when the cork is pulled from the bottle, the gas undergoes an adiabatic expansion until its pressure matches the ambient air pressure of 1.00 atm. Assume that the ratio of the molar specific heats is γ-4/3. If the gas has initial temperature T-4.7°C, what is its temperature at the end of the...
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