1 1 seg cm gr dina ∙ =

CONSTANTE UNIVERSAL DE LOS GASES R
mmHg  L
cal
kJ
1.9872
62 .361
8.31434
gmol  K
gmol  K
kmol  K
8.31434
kPa  m 3
kmol  K
82 .057
atm  cm 3
gmol  K
atm  m 3
0.08205
kmol  K
atm  L
0.08205
gmol  K
J
8314 .34
kmol  K
ft 3  lb f
10 .73 2
in  lbmol  R
ft 3  atm
0.7302
lbmol  R
J
8.31434
gmol  K
bar  m 3
0.08314
kmol  K
L  atm
kmol  K
BTU
1.9872
lbmol  R
ft  lb f
1545 .35
lbmol  R
82 .05
psia  ft
10 .73
lbmol  R
bar  L
0.08314
gmol  K
3
555
mmHg  ft 3
lbmol  R
inHg  ft 3
21 .85
lbmol  R
kW  hr
0.0005819
lbmol  R
HP  hr
0.0007805
lbmol  R
mmHg  ft 3
998 .9
lbmol  K
atm  ft
1.314
lbmol  K
1 yarda = 3 ft = 0.9144 m = 36 in
= 14.5038 lbf /in2 = 750 mmHg
1 braza = 6 ft
FUERZA
mbar = 100 Pa = 1 000 dina /cm2
kg  m
1N  1
 1  105 dina  0.22481 lb f  7.233 poundal
seg 2
1 lbf /ft2 = 478.8 dina /cm2 = 0.1922 inH2O = 47.88 Pa
= 6.944x10-3 lbf /in2 = 4.725x10-4 atm
1 kgf = 9.80665 N
1 lb f  32.174
1 grf =980.665 dinas
g  9.80665
c
3
1 baria  1
lb  ft
 4.44822 N  0.454 kg f  32.174 poundal
seg 2
kg  m
kg  seg 2
f
1
1 dina  1
kg  m
N  seg 2
 32.174
dina
cm 2
1 Pa  1
gr  cm
seg 2
lb  ft
f
lb  seg 2
f
1
slug  ft
lb  seg 2
f
ACELERACIÓN
1
ft
m
cm
1
 100
 3.2808
seg 2
seg 2
seg 2
ft
m
1
 0.3048
seg 2
seg 2
gr  cm
dina  seg 2
1
=252 cal = 6.585 x 10 eV
1 kW·hr = 1.341 HP·hr = 3 600 kJ = 3 412.14 BTU
1 J = 1 N·m = 0.2394 cal = 10 bar·cm3 = 0.73756 ft·lbf = 107 erg
1 erg = 1 dina·cm
1 kgf ·m= 9.806 J
m
ft
 32 .174
seg 2
seg 2
TEMPERATURA
kg
gr
slug
lb
 0.001 3  1.94  10  3 3  0.062428 3
m3
cm
ft
ft
K = °C + 273
°F = 1.8 °C + 32
gr
kg
kg
lb
lb
lb
1
1
 1000 3  62 . 4286 3  8 . 345
 0 . 036127
cm 3
L
m
ft
gal
in 3
21
1 kJ = kPa·m3 =1 000 J
g  9.80665
DENSIDAD
ENERGÍA, TRABAJO Y CALOR
1 BTU = 1.055 x 1010erg = 777.9 ft·lbf = 1 055 J
= 1 Pa·m3
N
kg
1 2
m2
seg  m
1 kcal =1000 cal = 4.184 kJ = 41.224865 L·atm
Densidad
MASA
1 lb = 0.45359237 kg = 16 oz = 453.59 gr
 API 
1 slug = 32.174 lb = 14.5939 kg
lb
 1728
in 3
lb
ft 3
1
del H 2 O a 1 atm
141 . 5
r
cm 2
ft 2
m2
1
 3 .875
 1  10  4
seg
hr
seg
y 25 C  1000
 Be  145 
Soluciones más pesadas que el H 2 O
1 ton métrica = 1 000 kg = 2 240 lb = 1.10231 ton corta
= 0.984206 ton larga
 Be 
140
r
1
1
ft 2
m2
 0 . 0929
seg
seg
ft 2
m2
 2.58  10  5
hr
seg
1
ft 2
m2
 3.875  10 4
seg
hr
ENTALPÍA Y CALOR LATENTE
1
Soluciones más ligeras que el H 2 O
m2
ft 2
 10 . 764
hr
hr
kg
m3
 131 . 5
1 kg = 2.2046226 lb = 1 000 gr
1 ton corta = 2 000 lb = 907.1847 kg
DIFUSIVIDAD
kmol
lbmol
gmol
1
 0 .06243
 0 .001
m3
ft 3
cm 3
1
R = °F + 459.67 = 1.8 K
145
r
1
 130
1
BTU
lb
ft  lb f
lb
 2326
kg f  m
J
kcal
 0 . 555
 237 . 1
kg
kg
kg
 2 . 989
m  kg f
J
 0 . 304689
kg
kg
1
m  kg f
J
 0.101937
kg
kg
cal
BTU
 1 .8
gr
lb
1
kJ
m2
BTU
 1000 2  0.430
kg
seg
lb
kcal
J
 4184
kg
kg
1
PRESIÓN
1 kg = 6.022x1026 uma = 6.852x10-2 slug
1 utm = 32.174 kg = 2.20462 slug = 70.931528 lb
lb
dina
N
1 Pa  1 2  1 .4504  10  4 psia  0 .020886 f2  10
 0.0075 Torr
ft
cm 2
m
1 stone = 224 oz = 14 lb = 6.35029 kg
1 kPa = 1 000 Pa = 1 x 10-3 MPa
CAPACIDAD CALORÍFICA Ó CALOR ESPECÍFICO
1 atm = 101.325 kPa = 1.01325 bar = 760 mmHg = 1.03323 kgf /cm2
LONGITUD
1 m = 100 cm = 1 000 mm = 39.37 in = 3.2808 ft = 1.0926 yd
= 10.3323 mH2O =14.696 psia = 29.9213 inHg =1.013x10 dina /cm
1 km = 1 000 m
= 76 cmHg
1 ft = 12 in = 0.3048 m = 0.333 yd
6
1 nm = 1x10 m = 10 Å
1 inHg = 3.387 kPa
1 micra = 1 x 10-8 m
1 psia = 144 lbf /ft2 =1 lbf /in2 = 6.894757 kPa = 27.68 inH2O
1 parsec = 30.8 x 1015 m
= 5.171 cmHg
1 milla náutica = 1 852 m = 1.151 millas = 6 072 ft
cal
cal
1
gr  C
gr  K
1
kJ
kJ
J
BTU
BTU
1
1
 0 . 23885
 0 . 23885
kg   C
kg  K
gr   C
lb   F
lb  R
1
BTU
BTU
1
lb   F
lb  R
1
BTU
kJ
 4.1868
kmol  K
lbmol  R
CAUDAL O FLUJO VOLUMÉTRICO
1 in = 2.54 cm = 0.08333 ft
-9
1 furlong = 201.168 m = 220 yd = 660 ft
1
2
1 fermi =1x10-12 m
1 año luz = 9.46 x 1015 m
BTU
cal
kcal
kJ
kW  seg
1
1
 4 .1868
 4 .1868
lb   F
gr  C
kg  C
kg  C
kg  C
1 mmHg = 0.1333 kPa = 1 Torr = 0.10 cmHg = 1.33322 mbar
1 milla = 5 280 ft = 1.6093 km = 1 609.3 m
1 Å = 1x10-10 m
1
1 inH2O = 2 491 dina /cm2 = 0.1868 cmHg = 249.1 Pa = 5.202 lbf /ft2
6
2
5
1 bar = 1x10 dina /cm = 0.1 MPa = 0.986923 atm = 1x10 Pa
L
gal
L
L
1
 0 .264201
 0 .016667
 60
min
min
seg
hr
1
ft 3
L
 28 . 317
min
min
 7 . 48058
gal
min
 448 . 8348
gal
hr
TENSIÓN SUPERFICIAL
1
1 ton de refrigeración = 2000 BTU /min
lb
N
dina
gr  cm
 0 .068529 f  1000
 1000
m
ft
cm
seg 2  cm
caballo de vapor eléctrico = CV = 746 W
caballo de potencia métrico = 735.499 W
VELOCIDAD
1
km
m
cm
ft
 0 . 277778
 277 . 778
 546 . 807087
hr
seg
seg
min
1
rad
seg
1
m
km
ft
mi
 3 .6
 3 . 2808
 2 . 237
seg
hr
seg
hr
grados
seg
 57 . 29
rev
seg
 0 . 15917
Instituto Mexicano de
Ingenieros Químicos A. C.
caballo de vapor mecánico = HP = 0.999598 CV
 9 . 5502
caballo de potencia de caldera = 9 803 W = 1 B.H.P.
SECCIÓN ESTUDIANTIL
AREA
rpm
1 m2 = 1x104 cm2 = 1x106 mm2 = 1x10-6 km2 =1550 in2 = 10.764 ft2
1 ft2 = 144 in2 = 0.09290304 m2
VOLUMEN ESPECÍFICO
VISCOSIDAD
m3
L
cm 3
ft 3
1
 1000
 1000
 16 .02
kg
kg
gr
lb
gr
kg
1 poise  100 cp  1
 0 .1
cm  seg
m  seg
1 stoke  1
cm 2
 0 . 001076
seg
3
kg
m  seg
1
cal
seg  cm
1
kcal
BTU
J
cal
 0.2048
 1.163104
 2.775105
hr  m2  C
hr  ft 2  F
seg m2 C
seg cm2  C
1
W
J
BTU
kcal
1
 0.1762
 0.859863
m 2  C
seg  m 2  C
hr  ft 2  F
hr  m 2  C
1
W
BTU
W
 1760
 3.5816 2
cm 2  C
hr  ft 2 F
in  F
VOLUMEN
3
6
3
1 m = 1x10 cm = 1 000 L = 35.315 ft3 = 6.1024x104 in3
3
= 264.17 gal US
2
 C
 7380
BTU
W
 4 . 1868
hr  ft 2   F
cm 2   C
1 L = 1000 cm = 61.02 in
4
3
1 in3 = 16.39 cm3
CONDUCTIVIDAD TÉRMICA
1 ft = 2.832x10 cm = 28.32 L = 1728 in3 = 7.481 gal US
3
1 gal = 277.4 in3
1 gal US = 231 in3 = 3.7854 L
3
1 barril = 42 gal US = 5.615 ft = 159 L = 0.159 m3
GAS IDEAL A CONDICIONES NORMALES
1 gmol a 0°C y 1 atm = 22.4 L
1 lbmol a 0°C y 1 atm = 359 ft3
BTU
cal
W
 3.444  10  4
 0.001442
1
2  F 
2  C 
2  C 
hr  ft   
seg  cm  
cm  


 in 
 cm 
 cm 
cal
J
 1.24
 0.1442
seg  m  C
2  C 
hr  cm  

 cm 
kcal
W
J
BTU
 1 .73
 1 .73
 1 .487
hr  m  C
m  C
seg  m  C
2  F 
hr  ft   
 ft 
cal
 4 .132  10  3
seg  cm  C
1
POTENCIA
7
1 W = 1 J /seg = 1x10 erg /seg = 1 vatio = 14.36 cal /min
= 1 N·m /seg
1 kW  1000 W  1 . 341 HP  3412 . 14
1 HP  550
ft  lb
ft  lb f
BTU
 0 . 73756
hr
seg
MOLES
1 lbmol = 453.59 gmol = 0.45359237 kmol
 745 . 7 W  0 . 7068
seg
BTU
 2544 . 5
 0 . 7457 kW
hr
1
INSTITUTO TECNOLÓGICO
DE MINATITLÁN
1 cm = 1 ml = 1 cc
3
3
m3
kg
BTU
kcal
J
HP
1
 4.88
 5.678104
 0.000393 2
hr  ft 2  F
hr  m 2  C
seg  cm2  C
ft  F
kg
lb
lb
 1488 .145862 cp  5 .357  10 6
 5357 .302301
ft  seg
ft  hr
m  hr
N  seg
 1 .488
m2
kg
 1  10
m  hr
ft 3
 0 . 062428
lb
COEFICIENTE DE TRANSFERENCIA DE CALOR
ft 2
 100 centistoke
seg
1
1 cp  3.6
1
f
BTU
seg
 42 . 41
BTU
min
ft  lb f
kJ
BTU
cal
 1 . 055056
 0 . 293071 W  0 . 216
 0 . 07014
hr
hr
seg
seg
1 kmol = 1 000 gmol = 2.2046226 lbmol
1 gmol = 0.002205 lbmol
UNIVERSIDAD AUTÓNOMA
METROPOLITANA-IZTAPALAPA