Give that
altitude = 5,280 ft
temperature = 20C
molar weight of air = 28.96 g/mol
Calculate the density of air (in kg/m3)
Give that altitude = 5,280 ft temperature = 20C molar weight of air = 28.96 g/mol...
At an altitude of 11,000 m (a typical cruising altitude for a jet airliner), the air temperature is -52.5 ∘C and the air density is 0.356 kg/m3. The molar mass of air is 28.8 g/mol. What is the pressure of the atmosphere at that altitude? (Note: The temperature at this altitude is not the same as at the surface of the earth, so the equation P=P0exp(−MgyRT) doesn't apply.)
problem 40 with parts 40. The atmospheric pressure (force per unit area) on a surface at an altitude z is due to the weight of the column of air situated above the surface. Therefore, the difference in air pressure p between the top and bottom of a cylindrical volume element of height Az and cross-section area A equals the weight of the air enclosed (density ρ times volume V-: ΑΔε times gravity g), per unit area: Let Δ、→0 to derive...
What is the density (in g/L) of a gas with a molar mass of 122.7 g/mol at a pressure of 2.07 atm and a temperature of 52.39 °C?
1) A cylinder is filled with 0.10 mol of an ideal gas at standard temperature and pressure, and a 1.4-kg piston seals the gas in the cylinder (see figure) with a frictionless seal. The trapped column of gas is 2.1-m high. The piston and cylinder are surrounded by air, also at standard temperature and pressure. The piston is released from rest and starts to fall. The motion of the piston ceases after the oscillations stop with the piston and the...
Forty miles above Earth's surface the temperature is -23 °C, and the pressure is only 0.20 mm Hg What is the density of air (molar mass - 29.0 g/mol) at this altitude?
A General Aviation aircraft is cruising at an altitude of 15,000 ft. A research payload brings in 1500 lbm/min of external air at 190 mph without changing the density, pressure, or temperature of the air compared to standard conditions. This air is then moved through a duct where the outlet is 200 in2, where it encounters a metric thermal sensor. Determine the expected temperature of the air at the sensor in degrees Celsius
The total wing area of a Boeing B-29 is 1736 ft. The fully loaded take-off mass of a B-29 is 6.25 x 104 kg. The cruising speed of the B-29 is 275 mi/h. At cruising altitude, the air temperature is 251 K and the air pressure is 6.16 x 10Pa. a. Use the density form of the ideal gas law (assuming the average molar mass of the air is 0.0288 kg moll) to compute the air density at cruising altitude...
The molar mass of solid is 110.98 g/mol PART IV MOLAR MASS OF SOLID Mass of Calorimeter (g) 10%1841 991565p S10005 Mass of Calorimeter plus water (g) Mass of water (g) Mass of unknown solid (g) alig'c 28.3 Initial temperature (°C) Final temperature (C) Temperature change (AT) Heat, q (kJ) Heat of solution per gram of solid (kJ/g) Heat of solution per mole of compound (kJ/mol) DATA ANALYSIS 1. Calculate q solution (Cs for water is 4.184 J/g°C) 2. Identify...
13. The weight of an object is 10 N in the air, 6.3 N in water (water density 1000 Kg/m3). Identify the material according to the following density values: Al: 2700 Kg/m3 ; Ti: 4500 Kg/m3 ; Zn: 7000 Kg/m3 ; Sn: 7300 Kg/m3 ; Fe: 7870 Kg/m3
The mile high city of Denver, Colorado is at an altitude of 1600 m above sea-level. (a) Make the assumption that the density of air (1.2 kg/m3 ) is constant versus height to estimate the air pressure in Denver. (b) You decide to impress your Rocky Mountain friends by showing how you can use a long straw. How low does the pressure need to be in your lungs to use a straw that is 1.5 m long (assume you are...