Homework Answers
Add Answer to:
D.31 One method of producing synthetic fuel rich in hydrogen is by coal gasification. In a...
4) An ideal-gas mixture of helium and nitrogen with a nitrogen mass fraction of 35 percent...
4) An ideal-gas mixture of helium and nitrogen with a nitrogen mass fraction of 35 percent is contained in a piston-cylinder device arranged to maintain a fixed pressure of 700 kPa. The mixture is heated from 300 K to 500 K a. Determine the molar mass and gas constant for the mixture. b. Determine the work produced, in kJ/kg. (Hint: Try finding the specific c. Determine the constant-volume and constant-pressure specific heats (Answer: 5.72 kg/kmol, 1.45 kJ/kg K) volumes at...
Nitrogen in a piston cylinder device occupies 0.5 m3 at 100 kPa and 20 °C. It undergoes a compres...
Nitrogen in a piston cylinder device occupies 0.5 m3 at 100 kPa and 20 °C. It undergoes a compression process (during which PV1.30-constant) to a final state where the temperature is 200 °C. The specific heats are assumed to be constant while Tsur - 15 C a) Prove that the gas, at state 1, can be treated as an ideal gas. b) Find the pressure and volume at state 2 c) Find the heat transfer, in kJ. d) Find the...
Problem 1 A mixture having mole fractions of 37% N,, 50% CO,,10% 0, and 3% CO...
Problem 1 A mixture having mole fractions of 37% N,, 50% CO,,10% 0, and 3% CO flows through a turbine with T, - 100°C and P, = 200 kPa. Analyze the gas mixture to find: (a) the mass fractions of the components (b) the equivalent molar mass (c) the gas constant for the mixture (d) the specific heat at constant pressure (C, ) and the specific heat ratio (k) for the mixture (e) the power output by a turbine with...
Problem 1 A mixture having mole fractions of 37% N2, 50% CO2, 10% O2 and 3%...
Problem 1 A mixture having mole fractions of 37% N2, 50% CO2, 10% O2 and 3% CO flows through a turbine with Ti = 100° C and P1 = 200 kPa. Analyze the gas mixture to find: (a) the mass fractions of the components (b) the equivalent molar mass (c) the gas constant for the mixture (d) the specific heat at constant pressure (Cp) and the specific heat ratio (k) for the mixture power output by a turbine with exit...
Propane is compressed from an initial state with a pressure of 100 lbf/in2 and a quality...
Propane is compressed from an initial state with a pressure of 100 lbf/in2 and a quality of 0.40 to a final saturated liquid state with a temperature is 50°F. Is it possible for this process to occur adiabatically? Justify your answer. Air is contained in a rigid, well-insulated container of volume 3 m3. The air undergoes a process from an initial state with a pressure of 200 kPa and temperature of 300 K. During the process, the air receives 720...
Problem 3 In modern high-speed compression ignition engines, fuel is injected into the combustion chamber much...
Problem 3 In modern high-speed compression ignition engines, fuel is injected into the combustion chamber much sooner than in early diesel engines. That means, heat is added partly at constant volume and partly at constant pressure. The advantage of this modification is that more time is available for the fuel to completely combust. The ideal dual cycle consists of the following operations: • Process -: Isentropic compression • Process -3: Addition of heat at constant volume. • Process - Addition...
any help thank you Chapter 12 Ideal Gas Mixtures and Psychrometric Applications Converting Between Mass Fraction...
any help thank you
Chapter 12 Ideal Gas Mixtures and Psychrometric Applications Converting Between Mass Fraction and Mole Fraction Mass Fraction Mole Fraction m/M y, M M mf M cy, MM m/M Example 1: Determine the mf CO2 0.04 MW mix mixture molecular weight mf_N2 0.7 m mix (kg) (kg/kmol), specific volume mf_02 0.2 0.06 (m®/kg), and mole fraction for mf_H20 T(C) 40 a gas mixture given the mass P (bar) 1 fraction, temperature, pressure and volume. V(m3) Example 2:...
One of the parameters used to describe automobile engines is the compression ratio, which is the...
One of the parameters used to describe automobile engines is the
compression ratio, which is the ratio of the volume in the
piston-cylinder device in the engine at time1(the maximum volume)
to the volume in the piston at time 2 (the minimum volume) as shown
in the figure.
a) Assume that the working fluid is air, the pressure at time 1
is 95 kPa, the temperature is 295 K and the compression ratio is 8.
Also, assume that air has...
Fuel: 0.84C12H26+0.11C7H8+0.05C2H5OH Pressure ratio: rp = 16.7 Equivalence ratio: φ = 0.38 The fuel is a three-fuel blend of: Name Chemical Formula h¯◦f n-dodecane C12H26. −35...
Fuel: 0.84C12H26+0.11C7H8+0.05C2H5OH Pressure ratio: rp = 16.7 Equivalence ratio: φ = 0.38 The fuel is a three-fuel blend of: Name Chemical Formula h¯◦f n-dodecane C12H26. −352,100 kJ/kmol toluene C7H8 12,178 kJ/kmol ethanol C2H5OH −277,507 kJ/kmol For the inlet air conditions, use a temperature of 280 K and a pressure of 100 kPa. a) Calculate the net engine power for an air mass flow rate of 50 kg/s. • Except during combustion, assume that the working fluid is air, but account...
Quantitative: In the 1950s liquid hydrogen was considered as a fuel for a new type of...
Quantitative: In the 1950s liquid hydrogen was considered as a fuel for a new type of aircraft being developed, the SR-71 Blackbird (shown in Figure 1). Figure 1: The SR-71 Blackbird Early research on the project focused on which fuel to use for the Blackbird. Pratt & Whitney had a J-57 engine that was designed for kerosene and being considered for implementation on the Blackbird. The J-57 only took 5 months to convert to running on liquid hydrogen, however tests...
4) An ideal-gas mixture of helium and nitrogen with a nitrogen mass fraction of 35 percent is contained in a piston-cylinder device arranged to maintain a fixed pressure of 700 kPa. The mixture is heated from 300 K to 500 K a. Determine the molar mass and gas constant for the mixture. b. Determine the work produced, in kJ/kg. (Hint: Try finding the specific c. Determine the constant-volume and constant-pressure specific heats (Answer: 5.72 kg/kmol, 1.45 kJ/kg K) volumes at...
Nitrogen in a piston cylinder device occupies 0.5 m3 at 100 kPa and 20 °C. It undergoes a compression process (during which PV1.30-constant) to a final state where the temperature is 200 °C. The specific heats are assumed to be constant while Tsur - 15 C a) Prove that the gas, at state 1, can be treated as an ideal gas. b) Find the pressure and volume at state 2 c) Find the heat transfer, in kJ. d) Find the...
Problem 1 A mixture having mole fractions of 37% N,, 50% CO,,10% 0, and 3% CO flows through a turbine with T, - 100°C and P, = 200 kPa. Analyze the gas mixture to find: (a) the mass fractions of the components (b) the equivalent molar mass (c) the gas constant for the mixture (d) the specific heat at constant pressure (C, ) and the specific heat ratio (k) for the mixture (e) the power output by a turbine with...
Problem 1 A mixture having mole fractions of 37% N2, 50% CO2, 10% O2 and 3% CO flows through a turbine with Ti = 100° C and P1 = 200 kPa. Analyze the gas mixture to find: (a) the mass fractions of the components (b) the equivalent molar mass (c) the gas constant for the mixture (d) the specific heat at constant pressure (Cp) and the specific heat ratio (k) for the mixture power output by a turbine with exit...
Problem 3 In modern high-speed compression ignition engines, fuel is injected into the combustion chamber much sooner than in early diesel engines. That means, heat is added partly at constant volume and partly at constant pressure. The advantage of this modification is that more time is available for the fuel to completely combust. The ideal dual cycle consists of the following operations: • Process -: Isentropic compression • Process -3: Addition of heat at constant volume. • Process - Addition...
any help thank you
Chapter 12 Ideal Gas Mixtures and Psychrometric Applications Converting Between Mass Fraction and Mole Fraction Mass Fraction Mole Fraction m/M y, M M mf M cy, MM m/M Example 1: Determine the mf CO2 0.04 MW mix mixture molecular weight mf_N2 0.7 m mix (kg) (kg/kmol), specific volume mf_02 0.2 0.06 (m®/kg), and mole fraction for mf_H20 T(C) 40 a gas mixture given the mass P (bar) 1 fraction, temperature, pressure and volume. V(m3) Example 2:...
One of the parameters used to describe automobile engines is the
compression ratio, which is the ratio of the volume in the
piston-cylinder device in the engine at time1(the maximum volume)
to the volume in the piston at time 2 (the minimum volume) as shown
in the figure.
a) Assume that the working fluid is air, the pressure at time 1
is 95 kPa, the temperature is 295 K and the compression ratio is 8.
Also, assume that air has...
Quantitative: In the 1950s liquid hydrogen was considered as a fuel for a new type of aircraft being developed, the SR-71 Blackbird (shown in Figure 1). Figure 1: The SR-71 Blackbird Early research on the project focused on which fuel to use for the Blackbird. Pratt & Whitney had a J-57 engine that was designed for kerosene and being considered for implementation on the Blackbird. The J-57 only took 5 months to convert to running on liquid hydrogen, however tests...
Most questions answered within 3 hours.
-
Five moles of monatomic ideal gas have initial pressure 2.50 ×
103 Pa and initial volume...
asked 14 minutes ago -
A resistor and the capacitor are used to control the timing in
the RC circuit of...
asked 13 minutes ago -
Living in a group could bring several disadvantages to an
individual. What are some of the...
asked 31 minutes ago -
Complete and balance the following reactions. In case of no
reaction occurring write NR.
Mix #1:...
asked 36 minutes ago -
If an economy consumes 75% of any increase in income, then an
increase in autonomous investment...
asked 40 minutes ago -
A shotputter throws the shot with an initial speed of 15.8 m/s
at a 38.0 ∘...
asked 55 minutes ago -
Debra and Merina sell electronic equipment and supplies through
their partnership. They wish to expand their...
asked 56 minutes ago -
How does a linear regression allow you to better estimate
trends, costs, and other factors in...
asked 1 hour ago -
1. (15%) Describe the difference between a pull (Kanban), push
and CONWIP production systems.
asked 1 hour ago -
QUESTION 5
The total area under the Z distribution curve is equal to:
a.
10
b....
asked 1 hour ago -
Using Python
The variables x and y refer to numbers. Write a code segment
that prompts...
asked 1 hour ago -
If
the coefficient of static friction between a box and the floor is
0.35 with what...
asked 1 hour ago