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estimate the triple point temperature and pressure frome slope
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- An ideal gas confined to a container with a massless piston at the top. A massless wire is attacted to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 4.90 to 2.45L. When the external pressure is increased to 2.50 atm, the gas futher compresses from 2.45 to 1.96L In a seperate experiment with the same initial conditions of 2.50 atm was applied to the ideal gas, decreasing its volume from 4.90 to 1.96L in one step. If the final temperture was the same for both processes, what is the difference between q for the two step pocess and q for the one process in joules?A fuel has the following volumetric analysis: CH4 = 68% C2H6 = 32% Assume complete combustion with 15% excess aur at 101.325 kPa and 27 degrees dry bulb temperature. What is the total moles in the products of combustion?Ammonia (considered to be ideal gas, 1 mole) initially at 25 degree C and 1 bar pressure is heated at constant pressure until the volume has tripled.Use CP = 25.895 + 32.999 x 10^– 3 T – 30.46 x 10^– 7 T2 , J/mole-KCalculate: a) Q b) W c) delta H
- 1. A perfect gas undergoes compression at constant temperature, which reduces its volumeby 3.08 dm3. The final pressure and volume of the gas are 6.42 bar and 5.38 dm3, respectively. Calculate the original pressure of the gas in (a) bar, (b) atm. 2. Consider an isothermal column of an ideal gas at 25oC. What must be the molar mass ofthis gas be if the pressure is 0.80 of its ground level value at (a) 10km and (b) 1km ? Please show complete solutions7. Two vessels A and B of different sizes are connected by a pipe which valve. A pipe with a valve. Vessel A contains 142 L of air at 2,767.92 kPa, 93.33 OC. Vessel B, of unknown volume, contains air at 68.95 kPa, 4.44 OC. The valve is opened and, when the properties have been determined, it is found that the pressure and temperature of the mixture of gasses is 1378.96 kPa, and 43.33 OC. What is the volume of vessel B. Use R = 287.08 Joules/Kg-KO for AirThe gas A(g) (1 mole) undergoes a two-step process one after another as described below :i) The gas is expanded at 25°C and from 1 bar pressure against a constant pressure of 0.2 bar and the final volume of the gas is the twice the initial volume.ii) The gas is cooled down to -25°C at constant volume.Cv,m = 3/2 RCalculate ΔU, ΔH, q and w for the each step and for the entire process
- The molecular weight of two components A and B of a gas mixture are 24 and28 respectively. The molecular weight of gas mixture is found to be 30. If themass concentration of the mixture is 1.2 kg/m3, compute the following:a) Density fo component A and Bb) Molar Fractionsc) Mass fractionsd) Total pressure if the temperature of the mixture is 290KOxygen O2 ,at 200 bar is to be stored in a steelvessel at 20 0 C .The capacity of the vessel is 0.04m3 . Assuming that O2 is a perfect gas .calculate the mass of oxygen that can be stored in the vessel . Thevessel is protected against excessive pressure by a fusible plugwhich will melt if the temperature rises too high .At whattemperature must the plug melt to limit the pressure in the vesselto 240 bar ? .the molar mass of oxygen is 32 Kg/KmolThe ideal gas law relates the amount of gas present to its pressure, volume, and temperature. The ideal gas law is typically written as ??=???PV=nRT where ?P is the pressure, ?V is the volume, ?n is the number of moles of gas, ?R is the ideal gas constant, and ?T is the temperature. Rearrange the equation to solve for ?. then.... At 256 K,256 K, 1.435 mol1.435 mol of an ideal gas occupy a volume of 10.83 L10.83 L and have a pressure of 2.785 atm.2.785 atm. What is the value of the ideal gas constant? R=
- For the reaction 2H2S(g) + SO2(g)—> 3S (s,rhombic)!+ 2 H2O (g) at 298 k What is the pressure in atm of PH2S if delta Grxn is -129 kJ/mol , PSO2= 1.25 atm and PH2O = 0.0500 atmA sample of air was compressed to a volume of 31.4 L. The temperature was 298 K and the pressure was 3.75 bar. How many moles of gas were in the sample? If the sample had been collected from air at p = 1.00 bar, T = 298 K, what was the original volume of the gas?n = --------- molV = ---------- LThe virial equation of state may also be written as an expansion in terms of pressure: Z = 1 + B'p + ... The critical constants for water, H2O, are 218.3 atm. 55.3 cm3 mol-1 and 647.4 K. Assuming that the expansion may be truncated after the second term, calculate the value of the second virial coefficientB' at the critical temperature.