The speed of sound in an ideal gas at a temperature T is given by c=sqrt{kRT} where T is in absolute units . For air, k=1.4 (dimensionless), R=0.06855 Btu/lbm-R . Find the speed of sound at T=530 R in mph (miles per hour).
The speed of sound in an ideal gas at a temperature T is given by c=sqrt{kRT}...
Problem 2.3. An ideal ramjet is to fly at 20,000 ft with a Mach number of 3.5. The burner exit total temperature is to be 3200 °?? and the engine will use 145 lbm/s of air. The heating value of the fuel is 18,500 Btu/lbm. What is the diameter of the rounded exit, thrust, dimensionless thrust, and TSFC at this condition? (Assume that the temperature is 447.38°??, the static pressure is 6.747161 psia, and the specific heat ratio is 1.4...
help The thrust propelling a rocket is given by the equation where R is a gas constant which for air is 53.35 ft-lbf/(lbm degree R); k is a dimensionless ratio; T is the air temperature (degree R); and N is a dimensionless mach number. What are the fundamental dimensions of eta and what does eta physically represent?
At what temperature is the speed of sound in helium (ideal gas, = 1.67, atomic mass = 4.003 u) the same as its speed in oxygen gas at 19.0 oC? The speed of sound in oxygen at 19.0°C is 328 m/s.
At what temperature is the speed of sound in helium (ideal gas, = 1.67, atomic mass = 4.003 u) the same as its speed in oxygen gas at 15.9 oC? The speed of sound in oxygen at 15.9°C is 322 m/s.
Each of the parts below is a separate problem. Please look up or calculate the appropriate quantity. (a) Refrigerant-134a at T = 40°F and s = 0.22194 Btu/lbm: °R. Find u (Btu/lbm). (b) Water at P = 5.0 MPa and T = 100°C. Find the exact value of s (kJ/kg.K). (c) Refrigerant-134a at P = 80 psia and T = 50°F. Find s (Btu/lbm-ºR). (d) Nitrogen (ideal gas) at T = 250 K. Find 5° (kJ/kmol-K). (e) An inventor claims...
The Ideal Gas Law 4 of 8 Review | Constants I Periodic Table The ideal gas law describes thee relationship among the pressure P. volume V. number of moles n and absolute temperature T'of an ideal gas Here is the relationship expressed mathematicaly Part A PV-nRT How many air molecules are in a 14.0 x 12.0 x 10.0 ft room (28.2 L 200 C and ideal behavior 1 ft? Assume atmospheric pressure of 1.00 atm a room temperature of where...
Question 5 (2.0 pts) Assume that Cp for an ideal gas is given by co(T) = 0.9 + 2.5 x 10-* T, in kJ/kg-K, where is the temperature in Kelvin. (Use the gas constant R = 0.3 kJ/kg-K) (a) (+0.4) Derive an expression for Cy as a function of temperature. The gas undergoes an isochoric process from a temperature T, = 400 K to T2 = 500 K. Calculate the change in (b) (+0.6) enthalpy, in kJ/kg, (c) (+0.6) entropy,...
The formula for wind chill C (in ees Fahrenheit) is given by C-35.74 0.6215T- 35.75v0.16 + 0.42750.16 where v is the wind speed in miles per hour and T is the temperature in degrees Fahrenheit. The wind speed is 27 ± 3 miles per hour and the temperature is 8 1. Use dC to estimate the maximum possible propagated error (round your answer to four decimal places) and relative error in calculating the wind chill (round your answer to two...
Please answer all parts of the question: a,b,c,d Ideal Gas Law The ideal gas law states that PV = Nk T where P is the absolute pressure of a gas, V is the volume it occupies, N is the number of atoms and molecules in the gas, and T is its absolute temperature. The constant kg is called the Boltzmann constant and has the value kg = 1.38x10-29 J/K. A very common expression of the ideal gas law uses the...
Problem 1: Ideal Gas Law Problem 1. The ideal gas law states PV nRT where P, V, and T are the pressure, volume and absolute temperature; n is the number of moles of gas; and R is the the ideal gas constant. Consider a 1-gallon canister of gas at a pressure of 1 atm. Answer the following questions: 1. How much energy would be needed to increase the pressure of the closed canister to 50 psi without changing its volume?...