Tabla-conversion Factores (1).docx

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UNIVERSIDAD NACIONAL EXPERIMENTAL POLITECNICA ANTONIO JOSE DE SUCRE VICERECTORADO “LUIS CABALLERO MEJÍAS” DEPARTAMENTO DE CIENCIAS BASICAS QUÍMICA

TABLA DE CONVERSIÓN DE FACTORES FACTORES DE CONVERSIÓN DIMENSIONES LONGITUD [m]

AREA [m2] VOLUMEN [m3] CAUDAL [m3/s] MASA [Kg] CANTIDAD DE MATERIA [mol]

UNIDADES 1 Pie = 12 pulg = 0,3048 m = 1/3 yarda 1 m = 3,28 pies = 39,37 pulg = 1,094 yardas = 10 10 Å 1 pulg = 2,54 cm 1 milla = 5280 pies = 1609,3 m = 1,6093 Km 1 pie2 = 144 pulg2 = 929 cm2 = 0,0929 m2 1 m2 = 10,76 pies2 = 1,55 x 103 pulg2 1pulg2 = 6,45 cm2 1 pie3 = 7,48 gal = 28,32 lt = 0,02832 m3 = 1728 pulg3 1 m3 = 1000 lt = 264 gal = 35,31 pies3 = 6,10 x 104 pulg3 1 GPM = 63,1 cm3/s = 6,31 x 10 -5 m3/s = 0,227 m3/hr = 8,02pies3/hr 1 Bbl/dia = 6,625lt/hr = 0,0292 GPM = 0,234pie3/hr 1lb = 453,6gr = 0,4536 Kg = 16 oz 1oz = 28,35 gr = 0,0625 lb 1Kg = 1000 gr = 10-3 ton = 2,20 lb = 35,3 oz 1lb mol = 453,6 gr mol = 453,6 mol = 0,4536 Kg mol 1 gr mol = 1mol 1 átomo mol = 6,022x1023 átomos = peso atómico

DENSIDAD

1 gr/cm3 = 62,4 lb/pie3 = 1000 Kg/m3

[Kg/m3]

1 lbm/ft3 = 16,018 Kg/m3

FUERZA

1 N = 1 Kg.m/s2 = 105 dinas = 105gr.cm/s2 = 0,225 lb-f 1 Kg-f = 9,8 N = 9,8 Kg.m/s2 = 2,20 lb-f 1 gr-f =980 dinas = 980 gr.cm/s2 1 lb-f = 32,2 poundal = 32,2 lb.pie/s2 = 0,4536 Kg-f

[N]

1 Pa = 1 N/m2 = 1 Kg/(m.s2) = 10-5 bar = 10 barias = 10 dinas/cm2 = = 1,02 x 10-5 Kg-f/cm2 1 atm = 1,013 x 105 Pa = 101,3 KPa = 1,013 bar = 1,033 Kg-f/cm2 = PRESIÖN [Pa]

= 14,7 psi = 10,33 m agua = 33,91 pies agua = 760 mm Hg = 29,92 pulg Hg 1 psi = 1 lb-f/pulg2 = 6,895 KPa 1 baria = 1 dina/cm2 = 10-6 bar 1 Torr = 1/760 atm = 133,322 Pa

continuación

DIMENSIONES VISCOSIDAD [Pa/s]

UNIDADES 1 poise = 100 cp = 1 gr/(cm.s) = 0,1 =Pa.s = 0,1 Kg/(m.s) = = 360 Kg/(m.hr) 1 cp = 2,42 lb/(pie.hr) = 6,72 x 10 -4 lb/(pie.s) = 10-3 Pa.s =10-3 Kg/(m.s) = = 3,6 Kg/(m.hr)

TEMPERATURA [K]

ENERGÍA [J]

t°C = (t°F – 32) / 1,8 t°F = 1,8 x t°C + 32 T K = t°C + 273,15 T°R = t°F + 460

(Δt)°F = (ΔT)°R = 1,8 x (Δt)°C = 1,8 (ΔT)K 1 Δ°C = 1 ΔK = 1,8 x Δ°F = 1,8 x Δ°R

1 cal = 4,184 J = 4,184 N.m = 3,086 lb-f.pie = 4,184 W.s 1Btu = 252 cal = 1055 J = 778 lb-f.pie 1Kw.hr = 1,341 Hp.hr = 3413 Btu = 860,6 Kcal = 3,6 x 10 6 J = 2,655 x 106 lb-f.pie

POTENCIA [W]

1 W = 1J/s = 1Kg.m2/s3 = 0,7376 lb-f.pie/s = 3,412 Btu/hr 1 Kw = 103 W = 103 Kg.m2/s3 = 737,6 lb-f.pie/s 1 Hp =746 W = 550 lb-f.pie/s

CONDUCTIVIDAD TÉRMICA

1 Btu/(hr.pie.°F) = 1,488 Kcal/(hr.m.°C) = 1,726 W/(m.K)

[W/(m.K)]

1 cal/ (hr.m.°C) = 4,184 J/(hr.m.K) = 1,16 x 10 -3 W/(m.K)

CAPACIDAD CALORÍFICA

1 cal/(gr.°C) = 1 Btu/(lb.°F) = 4,184 x 103 J/(Kg.K)

[J/(Kg.K)] COEFICIENTE DE TRANSFERENCIA DE CALOR

1 Btu/(hr.pie2.°F) = 4,88 Kcal/(hr.m2.°C) = 5,68 W/(m2.K)

[W/(m2K)] ACELERACIÓN DE LA

g = 9,8 m/s2 980 cm/s2 = 32,2 pie/s2 = 4,17 x 108 pie/hr2 = 1,27 x 108 m/hr2

GRAVEDAD [9,8 m/s2] CONSTANTE DE LOS GASES [N.m/(mol.K)]

8,314 N.m/(mol.K) = 8,3145 J/(mol.K) = 83,145 cm3atm/(mol.K) = 8,1345m3Pa/(mol.K) = 8,2057x10-2atm.lt/(mol.K) = 82,057 atm cm3/(gmol K) = 0,7302 atm ft3/(lbmol.°R) = 1545 lbf. ft/lbmol.°R = 1,9872 Btu/lbmol°R = 1,9872 cal/(mol.K) = 847,8 Kgf.m/(Kmol.K)

NOTA: [xxx] = Unidad del Sistema Internacional CONSTANTE DIMENSIONAL (Sistema Inglés):

gc = 32,174 lbm.ft/(lb-f.s2)

MECS/ Abril-2015

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