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- Suppose a gasfilled incandescent light bulb is manufactured so that the gas inside the bulb is at atmospheric pressure when the bulb has a temperature of 20.0C. (a) Find the gauge pressure inside such a bulb when it is hot, assuming its average temperature is 60.0C (an approximation) and neglecting any change in volume due to thermal expansion or gas leaks. (b) The actual final pressure for the light bulb will be less than calculated in part (a) because the glass bulb will expand. What will the actual final pressure be, taking this into account? Is this a negligible difference?Which of the assumptions below is not made in the kinetic theory of gases? (a) The number of molecules is very large. (b) The molecules obey Newtons laws of motion. (c) The forces between molecules are long range. (d) The gas is a pure substance. (e) The average separation between molecules is large compared to their dimensions. (f) of (his account are correct statements necessary for a clear and complete explanation? (ii) Which are correct statements that are not necessary to account for the higher thermometer reading? (iii) Which are incorrect statements?One process for decaffeinating coffee uses carbon dioxide ( M=44.0 g/mol) at a molar density of about 14,0 mol/m3 and a temperature of about 60 . (a) Is CO2 a solid, liquid, gas, or supercritical fluid under those conditions? (b) The van der Waals constants for carbon dioxide are a=0.3658 Pa m6/mol2 and b=4.286105 m3/mol. Using the van der Waals equation, estimate pressure of CO2 at that temperature and density. `
- ra solu QUE: A constant-volume gas thermometer (see the figures below) has a pressure of 5.28 x 103 Pa when the gas temperature is 0.00 °C. What is the temperature (in °C) when the pressure is 1.81 × 10³ Pa? Evacuated space Gas-filled bulb Reference lovel Substance whose temperature is being measured U-tube manometer Mercury Cin a constant volume as thermometer SUPPORT 121 ne gas ther... i a constant-... E Chegg SC CPresents the diagram of the problem, necessary formulas, clearance and numerical solution: On June 26, the US Brookhaven National Laboratory (BNL) announced that the Guinness World Records (GWR) organization had granted him the temperature record highest ever achieved: gold ion collisions at nearly the speed of light at the accelerator of Relativistic Heavy Ion Collider particles had formed a plasma at 4 billion degrees Celsius. Convert this value to ◦C and K.Suppose that the average speed (vme) of carbon dioxide molecules (molar mass 44.0 g/mol) in a flame is found to be 2.16 x 10° m/s. What temperature does this represent? 1.67e6 The number of grams per mole is numerically the same as the value measured in atomic mass units. How is the root mean square speed related to the temperature of a gas?K Additional Materials O Reading
- QUESTION 15 The volume of an automobile tire is 2.5 x 10 m3, the pressure of the air in the tire is 2.5 atm and the temperature is 25C . what is is the mass of air in grams ? The mean molecular mass of air is 29g. 1 atm = 1.01 x 105 Pa Calculate to 2 decimals. Chck Save and Submit 10 soee and submit. Click Save AL Answers to save all answers. Save All Answe 76 F ClearSuppose that the fundamental equation for a simple gas is as follows. S = Ns, + NR In T. V. where so, To, c, and Vo are all arbitrary constants.The Ideal Gas Law is given by the equation: PV — пRT Where: P = pressure V = volume n = moles T = temperature in Kelvin In order to solve for the moles, n, you must multiply both sides of the equation by the same expression: PV × = nRT × The resulting equation is: n =
- The specific reaction rate constant k is a strong function of temperature according to the following equation: 1 In the equation above, the reaction rate constant k is expressed in R is the universal gas constant 8.314- What is the unit of A? O mol m OK Om O J O mol K J mol 01 S Pa.m ³ m k=Axexp- Pa.m³ constant (1.314 P-²). mol. K E RT and T is the absolute temperature in K. The equation is dimensionally homogenous.Nitrogen is contained in a 80L tank and the initial pressure and temperature is 250 kPa and 200 °C, respectively. Note the ideal gas constant for nitrogen is 0.2968 kJ/kg KDetermine:a. The mass of the gas in kg.b. Now, if 0.05 kg of gas leaks out of the tank and in the process the temperature of the gas remaining in the tank in kPa. If the atmospheric pressure is 101.325 kPa.a) Calculate the volume in ft of one Ib-mole of air (MW = 29 lbm/lb-mole) at a temperature of 492 R at a pressure of 1 atm (absolute). b) Repeat the calculation of a) but now considering 1 Ib-mole of CO2 (MW= 44 lbmlb-mole). c) Calculate the molar volume (V) of this mole of air in ft'/lb-mole. d) Calculate the density (P) of air in Ibm/ft under these conditions e) Calculate the density (p) of CO, in Ib.m/ft under these conditions