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TABLA DE FACTORES DE CONVERSIÓN

MASA ( M ) : Unidad de medida SI (Kg)

1.0 UTM = 9.81 Kg
1.0 slug = 32.2 lb
1.0 Kg = 1000 g = 103 g = 106 mg
1.0 Kg = 2.205 lb
1.0 lb-m = 16.0 oz. = 453.6 g = 4.536x105 mg
1.0 Ton = 2000 lb = 907.03 Kg
1.0 T.M. = 1000 Kg = 103 = 106 g = 109 mg
= 2205 lb = 68.5 slug = 101.95 UTM

LONGITUD (L) : Unidad demedida SI (m)

1.0 Km = 1000 m = 103 m = 105 cm = 106 mm
1.0 m = 100 cm = 102 cm = 103 mm
= 1010 Aº = 106 ( = 109 m(
= 39.37 plg = 3.2808 pie = 1.0936 yardas
1.0 cm = 108 Aº = 104 ( = 107 m(
1.0 pie = 12 plg = 0.3048 m = 30.48 cm = 304.8 mm
1.0 plg = 2.54 cm = 25.4 mm
1.0 yarda = 3.0 pie = 91.44 cm
1.0 milla terrestre = 1609 m = 5280pie
1.0 milla marina = 1852 m = 6076.1 pie
1.0 Aº = 10- 8 cm = 10- 10 m
1.0 ( = 10- 4 cm = 106 Aº

VOLUMEN ( V ) Unidad de medida SI ( m3 )

1.0 m3 = 103 dm3 = 103 l = 1000 l
= 106 cm3 = 106 ml = 35.3147 pie3
= 264.172 gal us
1.0 pie3 = 0.028317 m3 = 7.481 gal us
= 1728 plg3 = 28.3168 l
1.0 bbl = 42 gal us = 5.615 pie3 = 159.0 l
1.0 galus = 0.1337 pie3 = 3.785 l

DENSIDAD ( ( ) Unidad de medida SI (Kg/m3 )

1.0 g/cm3 = 1000 Kg/m3 = 103 Kg/m3 = 103 g/l
= 62.4228 lb/pie3 = 3.6127x102 lb/plg3
= 8.3454 lb/gal us

TEMPERATURA

1º C = 1.8 ºF 1ºR = 1ºF
1º K = 1 ºC 1ºC = 1.8ºR
1º K = 1.8ºF

FUERZA ( F ) Unidad de medida SI ( N )

1.0 Kgf = 9.81 Kg.m/s2
= 9.81 x 105 dyn =103 gf
1.0 N = 105 dyn = 106 g.cm/s2
1.0 lbf = 4.4482 N = 4.4482 x 105 dyn
= 32.174 lb.pie/s2

Psia = lb-f/plg2

PRESION ( P ) Unidad de medida SI ( Pa )

1.0 atm = 33.91 pie H2 O = 406.92 plg H2 O
= 10.333 m H2 O = 29.921 plg Hg
= 76.0 cm Hg = 760 mm Hg
= 1.0333 Kgf/cm2 = 10333 Kgf/m2
= 14.696 lbf/plg2 abs = 14.696 psia = 13.6898 opsig= 1.01325 bar = 101325 N/m2
= 101325 Pa = 1013250 dyn/cm2
1.0 bar = 105 N/m2 = 105 Pa = 106 dyn/cm2
= 750.06/mm Hg = 14.5038 psia
1.0 Kgf/cm2 = 735 mm Hg = 9.81 x 104 Pa = 10 m H2 O
1.0 mm H2 O = 9.81 Pa
1.0 mm Hg = 133.3 Pa
1.0 lbf/pie2 = 47.88 Pa = 47.88 x 10- 5 bar
1.0 lbf/plg2 = 6895 Pa = 0.06895 bar

ENERGÍA Unidad de medida SI ( J )1.0 J = 1.0 m.N = 1.0 w.s = 1.0 Kg.m2/s2
= 107 erg = 107 dyn.cm
= 10 cm3.bar = 10- 2 l.bar = 10- 5 m3 .bar
= 9.86923 cm3 .atm = 9.86923 x 10- 3 l.atm
= 5.12197 x 10- 3 psia.pie3 = 0.239006 cal
= 0.737562 pie.lbf = 9.47831 x 10- 4 Btu
1.0 cal = 4.184 J = 4.184 x 107 erg
= 41.84 cm3 .bar = 0.04184 l.bar
= 41.293 cm3 .atm = 0.041293 l.atm
=0.02143 psia.pie3 = 3.0861 pie.lbf
1.0 Kcal = 103 cal = 4184 J
1.0 Btu = 1055 J = 778.16 pie.lbf = 252.15 cal
= 10.412 l.atm = 107.587 m Kgf
1.0 l.atm = 10.333 mKgf = 24.217 cal
1.0 pie.lbf = 12.0 plg.lbf = 1.35582 J = 0.32405 cal
1.0 m.Kgf = 9.806 J
1.0 ev = 1.602 x 10- 12 erg = 10- 6 Mev

POTENCIA : Unidad medida SI (w)

1.0 Kw = 103 w = 103J/s = 103 VA = 103 Kg.m/ s3 = 3.6 x 106 J/h = 239.006 cal/s
= 737.562 pie.lbf.s- 1 = 860.4 Kcal
= 56.8699 Btu.min- 1 = 1.34102 HP
= 3412.2 Btu.h- 1
1.0 HP = 2544.5 Btu.h- 1 = 745.7 w = 745.7 J/s
= 550 pie.lbf/s = 33000 pie.lbf/min
= 76.0 m.Kgf/s
1.0 CV = 735.7 w = 735.7 J/s = 633 Kcal/h
1.0 Btu/s = 1.055 KwCAPACIDAD CALORIFICA : Unidades SI (J/mol.ºK)

Entropia especifica : “ “ (J/Kg)
1.0 cal/gºC = 1.0 Btu/lbºF = 4.184 J/molgºC

Capacidad calorifica molar :
1.0 cal/molgºK = 1.0 Btu/mol lbºR = 4.184 J/molgºK

Calor y entalpia especifica :
1.0 Btu/lb = 0.5559 cal/g = 2325.89 J/Kg
1.0 cal/g = 4.184 J/g = 4184 J/Kg
= 1.799 Btu/lb

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