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Mass flow through a sonic nozzle is a function of gas pressure and temperature. For a given pressure p and temperature T, mass flow rate through the nozzle is given by m = 0.0549 p /(T)0.5 where m is in Ib'min, p is in psia and T is in °R a. Determine what the units for the constant 0.0549 are. b. What will be the new value of the constant, now given as 0.0549, if the variables in the equation are to be substituted with SI units and m is calculated in SI units.

Mass flow through a sonic nozzle is a function of gas pressure and temperature. For a given pressure p and temperature T, mass flow rate through the nozzle is given by m = 0.0549 p /(T)0.5 where m is in Ib'min, p is in psia and T is in °R a. Determine what the units for the constant 0.0549 are. b. What will be the new value of the constant, now given as 0.0549, if the variables in the equation are to be substituted with SI units and m is calculated in SI units.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Q1) Mass flow through a sonic nozzle is a function of gas pressure and temperature. For a given pressure p and temperature T, mass flow rate through the nozzle is given by m = 0.0549 p /(T)0.5 where m is in Ib/min, p is in psia and T is in °R a. Determine what the units for the constant 0.0549 are. b. What will be the new value of the constant, now given as 0.0549, if the variables in the equation are to be substituted with SI units and m is calculated in SI units. Q2) An empirical equation for calculating the inside heat transfer coefficient, h; , for the turbulent flow of liquids in a pipe is given by: 0.023 GO.8 K0.67 Cp0.33 hi D0.2 µ0.47 where hi = heat transfer coefficient, Btu/(hr)(ft("F) G=mass velocity of the liquid, lbm/(hr)(ft)? K = thermal conductivity of the liquid, Btu (hr)(ft)(F) Cp = heat capacity of the liquid, Biu(lbm)(F) u= Viscosity of the liquid, Ib/(ft)(hr)" D= inside diameter of the pipe, (ft) a. Verify if the equation is dimensionally consistent. b. What will be the value of the constant, given as 0.023, if all the variables in the equation are inserted in SI units and h is in SI units. Q3) Phosphoric acid is a colorless deliquescent acid used in the manufacture of fertilizers and as a flavoring agent in drinks. For a given 10 wt % phosphoric acid solution of specific gravity 1.10 detemine: a. the mol fraction composition of this mixture. b. the volume (in gallons) of this solution which would contain 1 g mol HPO4.
Transcribed Image Text:Q1) Mass flow through a sonic nozzle is a function of gas pressure and temperature. For a given pressure p and temperature T, mass flow rate through the nozzle is given by m = 0.0549 p /(T)0.5 where m is in Ib/min, p is in psia and T is in °R a. Determine what the units for the constant 0.0549 are. b. What will be the new value of the constant, now given as 0.0549, if the variables in the equation are to be substituted with SI units and m is calculated in SI units. Q2) An empirical equation for calculating the inside heat transfer coefficient, h; , for the turbulent flow of liquids in a pipe is given by: 0.023 GO.8 K0.67 Cp0.33 hi D0.2 µ0.47 where hi = heat transfer coefficient, Btu/(hr)(ft("F) G=mass velocity of the liquid, lbm/(hr)(ft)? K = thermal conductivity of the liquid, Btu (hr)(ft)(F) Cp = heat capacity of the liquid, Biu(lbm)(F) u= Viscosity of the liquid, Ib/(ft)(hr)" D= inside diameter of the pipe, (ft) a. Verify if the equation is dimensionally consistent. b. What will be the value of the constant, given as 0.023, if all the variables in the equation are inserted in SI units and h is in SI units. Q3) Phosphoric acid is a colorless deliquescent acid used in the manufacture of fertilizers and as a flavoring agent in drinks. For a given 10 wt % phosphoric acid solution of specific gravity 1.10 detemine: a. the mol fraction composition of this mixture. b. the volume (in gallons) of this solution which would contain 1 g mol HPO4.
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