M= molecular weight
n= mole
Me= equivalent molecular weight of the mixture
Req= Equivalent R of the mixture
Hope it will help you.
any help thank you Chapter 12 Ideal Gas Mixtures and Psychrometric Applications Converting Between Mass Fraction...
- Question 1 (a) In an ideal gas mixture, the partial pressure of a constituent gas is: 25 points inversely proportional to the mole fraction inversely proportional to the square of the mole fraction equal to the mole fraction directly proportional to the mole fraction (b) The value of the universal molar gas constant is: 8.3145 J/(kmol) 8.3145 kJ/(kg) 8.3145 J/(kg) 8314.5 J/(kmol K) (c) A mixture of ideal gases consists of 4.42 kg of carbon monoxide (CO) and 5.91...
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...
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.
A mixture of ideal gases has a specific heat ratio of k= 1.35 and an apparent molecular weight of M= 26 kg/kmol. Determine the work. in kJ/kg, required to compress this mixture isentropically in a closed system from 100 kPa and 35 C to 700 kPa. The universal gas constant is Ru 8.314 kJ/kmol-K Gas mixture k-1.35 100 kPa, 35°C The work required to compress this mixture is kJ/kg.
3 ideal gases (hydrogen M = 2 kg/kmol, nitrogen M = 28 kg/kmol, methane M = 16 kg/kmol) in a rigid container of volume 11.4874 m^3 are at a pressure of 1013.25 kPa. The mass of container is 100 kg and the mass of the gases in total is 75 kg. The average molar mass of the gas mixture is 20 kg/kmol. If the partial pressure of methane is 202.65 kPa, what is the mole fraction of nitrogen and hydrogen?
A mixture of gases has the composition given in Table 1. It has a total mass of 3.46 kg, and has an initial volume and temperature of 1.273 m3 and 300 K respectively. The mixture undergoes polytropic compression to a final volume of 0.5 m3. The polytropic index for this process is known to be 1.2. Table 1: Volumetric analysis of a mixture of gases Constituent Gas Chemical Symbol Volumetric Analysis ViV Molar Mass m˜i [kg/kmol] Specific Heat Capacity at...
Thermodynamics- Gas mixture compression An ideal gas mixture at P1 and T1 is compressed in a piston cylinder assembly first isothermally to P2 and then isentropically (reversible and adiabatic) to T3. Assuming variable specific heats (use ideal gas tables) determine the following given the properties listed below. --Given Values-- m_O2 (kg) = 0.38 m_N2 (kg) = 0.34 T1 (K) = 650 P1 (bar) = 1.32 P2 (bar) = 2.52 T3 (K) = 738 1. Determine the pressure (bar) at state...
5. a) The composition of a mixture of nitrogen and carbon dioxide gases is 30%-N, and 70%- CO2 by mole fraction. What is the mass fraction of the nitrogen constituent?b) Nitrogen (N2) at 150 kPa, 40°C occupies a closed, rigid container having a volume of 1 m3. If 2 kg of oxygen (O2) is added to the container, what is the molar analysis of the resulting mixture? If the temperature remains constant, what is the pressure of the mixture, in...
please answer 5, 6, 7, 9, An ideal gas (Oxygen) at P1 and T1 is compressed in a piston cylinder assembly first isothermally to P2 and then isentropically to T3. Do not assume that the specific heats are constant. Determine the following given the properties listed below. -Given Values- m (kg) 0.3 TI (K)=573 P1 (bar) 1.21 P2 (bar) 2.32 T3 (K) 676 1. Determine the moles (kmol) of O2 2. Determine the change in internal energy (kJ) from state...
4. (10 points) An ideal vapor-compression refrigeration cycle is modified to include a counter- flow heat exchanger, as shown below.Ammonia leaves the evaporator as saturated vapor at 1.0 bar and is heated at constant pressure to S "C before entering the compressor. Following isentropic compression to 18 bar, the refrigerant passes through the condenser, exiting at 40 18 bar. The liquid then passes through the heat exchanger, entering the expansion valve at 18 bar. If the mass flow rate of...