
Ouestion 2 The relative molecular mass of carbon dioxide, CO2, is 44. The value of y...
Carbon dioxide (CO2) gas is steadily pressurized and cooled by sending it sequentially through a compressor and then a heat exchanger. The CO2 enters the compressor at 275 °C, 101 kPa, and 195 m/s at a rate of 0.425 kmol/s and exits the isobaric heat exchanger at 185 °C, 205 kPa, and 85.0 m/s. Cooling water enters the heat exchanger at 5.75 kg/s, 5.00 °C and 125 kPa and exits as a saturated liquid at the same pressure. Assume the...
A gas cylinder containing carbon dioxide, CO2, 85% by volume, and nitrogen, N2, 15% by volume has a volume of 2.2 m and is kept at a temperature of 20°C. You may assume the gas mixture is ideal. 0 Calculate the pressure in kPa in the cylinder when it contains 50 kg of gas. [2 marks] After a certain amount of gas has been used, the pressure decreases by 150 kPa. Calculate the mass of gas used. [2 marks] (b)...
At an atmospheric pressure of 1.01×105Pa, carbon dioxide (CO2) sublimes at a temperature of -78.5∘C. The heat of sublimation is 5.71×105J/kg. You let heat flow into 6.0 kg of solid CO2 (volume 4.0×10−3m3) at atmospheric pressure and a constant -78.5∘C until it has completely sublimed to gas at -78.5∘C.The CO2 gas occupies a volume of 3.4 m3. A) For this process, calculate how much heat flows into the CO2. B) For this process, calculate how much work the CO2 does...
Five moles of carbon dioxide (CO2), initially 3 atm and 300 K, is trapped inside a piston-cylinder assembly. It is then allowed to expand against atmospheric pressure adiabatically. The constant- pressure heat capacity of CO2 is given by the following equation: p = 5.4574 (1.045 × 10-3)(T/K)-(1.157 × 105)(T/K)-2 (a) If we assume that the expansion is infinitely slow and quasi-static, calculate the final temperature and total volume of the carbon dioxide gas when it reaches 1 atm. Also calculate...
Question 2: (13 Marks) A quantity of carbon dioxide occupies a volume of 0.14 m'at 975 kPa and 370 °C. It is heated at constant volume to a pressure of 4.2 MPa, after which it is expanded in an insulated cylinder to a pressure of 270 kPa. Sketch these processes on a P-V diagram. Assuming Cp = 1.075 kJ/kg K for carbon dioxide, determine: A. The temperature at the start of the expansion B. The volume after expansion C. The...
1) A piston-cylinder assembly containing a mass of 2 kilograms of carbon dioxide (CO2) undergoes two processes in series from an initial state where p1 = 4.8 MPa, T1 = 285°C: Process 1–2: Constant-temperature expansion until the volume is twice the initial volume. Process 2–3: Constant-volume heating until the pressure is again 4.8 MPa. Assuming ideal gas behavior, determine: (a) the pressure at state 2, in MPa, (b) the temperature at state 3, in °C, and (c) the overall work,...
Carbon dioxide gas is contained in a rigid vessel (internal volume-200 liters, mass-10 kg. Cp= 0.47 kJ/kg K). The gas is initially at 25°C and 1 atm. Heat is transferred to the gas and the vessel from an external heat source maintained at 500°C until the temperature of the gas reaches 400°C. Calculate the amount of heat transferred. Is this process reversible? Support your answer by calculating (AS)iotal. Assume CO2 to be an ideal gas with Cp given as a...
I need help please! A mass of 1 kilograms of carbon dioxide (CO2) in a piston-cylinder assembly undergoes two processes in series from an initial state where p1 = 3 MPa, T1 = 204°C: Process 1–2: Constant-temperature expansion until the volume is twice the initial volume. Process 2–3: Constant-volume heating until the pressure is again 3 MPa. Assuming ideal gas behavior, determine the overall work, in kJ.
A 17.0-L tank of carbon dioxide gas (CO2) is at a pressure of 9.40 ✕ 105 Pa and temperature of 23.0°C. (a) Calculate the temperature of the gas in Kelvin. (b) Use the ideal gas law to calculate the number of moles of gas in the tank. mol (c) Use the periodic table to compute the molecular weight of carbon dioxide, expressing it in grams per mole. g/mol (d) Obtain the number of grams of carbon dioxide in the tank. (g) (e)...
if carbon dioxide (CO2) and hyrdogen could be converted to
methane (CH4) at 500 C and 20 bar with 80% conversion, how much
heat (kW) must be provided to or removed from the reactor to
produce 10 metric tons per day of methane?
315 Lab Workbook ercise 10: If carbon dioxide (COJ and hydrogen could be converted to methane (CH4) at 500C and 20 bar with 80% nversion, how much heat (kW) must be provided to or removed from the...