Parr-instrument 1356 Uživatelský manuál stáhnout pdf (Strana 21)

1. Solid Fuels (D2015)

Heat of Formation of .... 29KJ/mole

Sulfuric Acid for a Fuel with 5% sulfur and 5% hydrogen

S02(g) + 1/2 02(g) + H20(1) >H2S04 in 15 moles H20

e2 = 23.7 BTU/LB x %S x 1gm = x BTU gm/LB or

e2 = 13.17 cal/gm x %S x 1gm = x cal

2. Liquid Hydrocarbon Fuels (D240)

Heat of Formation of......301.KJ/moleSulfuric Acid for a fuel with .8% sulfur and 20%

hydrogen.

S02(g) + 1/2 02(g) + 651H20 > H2S04 650H20(1)

e2 = 14 cal/gm x %S x 1gm = x cal

GAS EFFECTS CALORIMETRY

There are occasions when the calorimeter is used to test

heat powders or similar materials in an inert atmosphere.

The question then becomes what is the effect on the heat

capacity when this change is made.

360 ml oxygen bomb x30atms/10800 ml or 10.8 liters

1. Oxygen

1.429 gm/liter x 10.8 liters = 15.43 gms

.219 cal

x 15.43 = 3.38 cal

gm K K

2. Argon

1.784 gm/liter x 10.8 liter = 19.27 gms

.124 cal x 19.27 gm = 2.39 cal

gm K K

3. Helium

.1785 gm

x 10.8 liter = 1.93 gm

1.24 cal x 1.93 gm = 2.39 cal

gm K K

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 40 41

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Parr-instrument 1356 Uživatelský manuál Strana 21