Example 2.3-3- A gas cylinder with a volume of 2.50 m' contains 1.00 kmol of carbon dioxide at T= 300 K. Use the SRK equation of state to estimate the gas pressure in atm. Data for carbon dioxide: T = 304.2 K, p. = 72.9 atm, and o= 0.2254.
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- A 0.5 m3 rigid tank contains nitrogen initially as an ideal gas at 252.4K and 339 kPa. A valve is opened and additional pure nitrogen is added to the tank until the final pressure is 11.865 MPa. The valve is then closed and the final temperature in the tank is determined to be 189.3K. Determine the amount of nitrogen added to the tank. (RN2 = 0.2968 kPa∙m3 /kg∙K, Pcr=3.39MPa, Tcr=126.2K)A 25L bag was filled with air, a 10uL sample was then injected into the bag to make 50ppmv vapor sample. Can you explain how you get to the 50ppmv?The volume of HCI is 100 mL , mass of solid added is 1.008g, moles of solid 0.0276 Mol, mass of HCI is 100g, initial temperature is 21.8 degrees Celsius, Final temperature is 30.7 degrees Celsius, Calculate q rxn(= -mc Delta T of HCI),
- SpaceX recently launched their Falcon Heavy rocket (Feb. 6, 2018). It is based on their existing Falcon 9 rocket. The Falcon 9 rocket has a first stage which is a 40 m high by 3.7 m diameter cylinder. This cylinder contains the fuel used to propel the rocket which consists of RP-1 (rocket propellant-1, high grade kerosene), and liquid oxygen, O2 (`). RP-1 is a complex mixture of hydrocarbons but let’s approximate it with a chemical composition of C12H26. The densities of the fuel are ρ (RP − 1) = 0.83 g cm3 ρ (liquid O2) = 1.141 g cm3 If the total volume available for the two tanks is contained in the 40 m high by 3.7 m diameter first stage, determine the volume of each individual tank that will provide the exact amount of RP-1 and oxygen for the reation (no limiting reagent) and take up the entire volume of the first stage. Here are some suggestions to guide you. 1. Write a balanced combustion reaction for C12H26 with O2. 2. Determine the ratio of the volumes of the individual RP-1…1. A gas consist of 70% propane and 30% butane by volume. Find the stoichiometric air-to-fuel ratio. a. 3:14 b. 14: 3 c. 23:1 d. 1:23 2. A furnace is fired with fuel oil with a partial analysis of 7.6% S and 2.8% N. Orsat analysis of the stack gas shows 9.44% CO2, 1.19% CO, 0.4% SO2, 0.47% H2, 6.8% O2 and 81.7% N2. Air supplied is at 23 deg Celsius, 755 mmHg and 85% RH. Calculate the percent excess air. a. 55% b. 78% c. 23% d. 38%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
- The gas left in a used aerosol can is at a pressure of 199.5 kPa at 292.9K. If the can is thrown into a fire what will the internal pressure of the gas be when its temperature reaches 1,015.1K? Answer in units of kPa. Round your result to the nearest tenth. Please include all steps, formula used, and a clear handwriting. Thank you!A drug is infused continuously intravenously (IV) for treatment of a particular disease. The volume of the body fluid V = 16 liters. The drug is excreted (removed) through the kidneys at rate ke , proportional to the concentration of the drug in the body fluids. The drug is ineffective and not used by the body if its concentration is below Cmin and becomes poisonous if the concentration goes over Cmax . It is metabolized at a rate km as the concentration is >=Cmin. Let the parameter values Cmin= 4 mg/l, Cmax =40 mg/l, ke = 0.2/hr and km = 0.3/hr.a. How much is the maximum possible rate of infusion of the drug?b. How long the drug would continue to be effective if the infusion has been stopped as the concentration reached at the maximum level?Ammonia (considered to be ideal gas, 1 mole) initially at 25 oC 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: c) delta H d) delta U e) delta S show complete solution
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