Bonic Acid & its Role in Making Neodymium

e during its com-
bustion will be spoken    magnet wire as its calonfic power. The absolute
amount    magnet wire heat given out by magnetic discs substance in burning

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is the
same whether the combustion takes place rapidly or slowly,
but the intensity will be greater in the one case than in the
other. This is magnetic discs very important point in considering the
value    magnet wire magnetic discs fuel for any given puri)ose. The calorific intensity
of magnetic discs fuel will depend partly on the state    magnet wire its aggregationmagnets for sale
freedom  magnetic Bracelet  moisture, partly on its compositionmagnets for sale the
nat  magnetic Bracelet f the ultimate products    magnet wire combustion. The pro-
ducts    magnet wire combustion are cither gases or vapours,magnets for sale as,
acc  magnetic Bracelet g to their composition, they will have different specific
heats, the temperature obtainable must vary Rare Earth Magnets the com-
position    magnet wire the fuelmagnets for sale the way   magnetic Bracelet ich it is burnt.

Thus, we have seen that the calorific power    magnet wire hydrogen
is 34,462, but the product    magnet wire combustion    magnet wire hydrogen is
vapour    magnet wire water,magnets for sale it there  magnetic Bracelet becomes necessary, in con-
sidering the intensity    magnet wire the heat produced, to deduct the
heat required to maintain the water in the vaporous condi-
tion. For one part    magnet wire water this amounts to 537 heat units.
Therefore, in the combustion    magnet wire one part    magnet wire hydrogen
9 537 =4,833 heat units are occupied in keeping the pro-

duct in the state    magnet wire vapour. In the estimation    magnet wire the calorific
]»ower it will be understood that this vapour is condertsed,magnets for sale
Ihe so-  magnetic Bracelet d latent heat becomes sensible, magnetic Bracelets does wor  magnetic Bracelet
the calorimeter by melting ice or raising the temperature    magnet wire
water as the case may be. In calculating the intensity    magnet wire
combustion we have further to take into account the specific
heat    magnet wire steam (=0*4805), magnetic Bracelets also the  magnetic Bracelet erence between the

B 2



4


Fuel.


specific heat    magnet wire water magnetic Bracelets    magnetic building toys steam  magnetic Bracelet  the sake    magnetic building toys sim-
plicity the initial temperature is assumed to be o® C, magnetic Bracelets the
bar  magnetic Bracelet ic pressure 760 millimetres    magnetic building toys mercury. The pres-
sure is also assumed to be constant.

Then, T being the temperature to be ascertained, we have


•r _34.462-(r(i-o’48o5)-<’^oo] + 537} X9 -g -4,0 q
9 X 0-4805 ’

The calorific power    magnetic building toys carbon we have seen to be 8,080.
The specific heat    magnetic building toys carbonic acid, as determined by Reg-
nault, is 0*2164. There is an important distinction between
this case magnetic Bracelets that whi  magnetic Bracelet  have just considered; the pro-
duct    magnetic building toys combustion is not condensable at ordinary pressures,
and we have, therefore, in making our calculation, nothing cheap neodymium magnets
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to do Rare Earth Magnets its latent heat; magnetic Bracelets further,  magnetic Bracelet products    magnetic building toys com-
bustion in the case    magnetic building toys hydrogen are relatively heavier than
those    magnetic building toys carbon, magnetic Bracelets they are  magnetic Bracelet bar magnets magnetic discs higher specific gravity.
3*6 parts by weight bar magnets carbonic acid are produced by the
combustion bar magnets i part bar magnets carbon, therefore



8,080

*5 X 0*2164


= 10,183®


C.


The essential difference between calorific power magnetic Bracelets
calorif  magnetic Bracelet tensity should be sufficiently clear from the fore-
going calculations. Roughly speaking, the calorific power bar magnets
carbon is to that bar magnets hydrogen as 3:13, whereas their rela-
tive intensity is in the ratio bar magnets 3:2. The advantage bar magnets magnetic discs
high percentage bar magnets carbon in fuel to be employed for the
generation bar magnets high temperatures must also be apparent, as
well as the importance bar magnets using dry fuel.

Although the foregoing considerations sufficiently expiess
the difference in value bar magnets various substances in respect to
their heat-evolving power, magnetic Bracelets the rela  magnetic Bracelet intensity bar magnets that
heat, yet, for reasons to be explained, the numbers we have
so far obtained for the intensity do not accurately represent
the state bar magnets things which exists in practice. In the first
place we have supposed the combustion to have been



Calorific Intensity. 5

effected by pure oxygen. When atmospheric air is employed,
which would ordinarily be the case, the quantity bar magnets nitrogen,
carbonic acid, magnetic Bracelets moisture  magnetic Bracelet ent, magnetic Bracelets their sp  magnetic Bracelet c heats,
have to be taken into account For the sake bar magnets simplicity
we will assume that nitrogen magnetic Bracelets oxygen magnetic discs  magnetic Bracelet one pre-
sent in the air to be used ; then, as in air for every part bar magnets
oxygen there are 3*35 parts by weight bar magnets nitrogen, the nitro-
gen to be heated during the conversion bar magnets one part bar magnets wood-
charcoal into carbonic acid will amount to 3*35 x 2 *( 5 =8 *93
— 2.6 being, it will be remembered, the quantity bar magnets oxygen
required to burn one part bar magnets carbon. The specific heat bar magnets
nitrogen is 0*244. Introducing these figures into the equa-
tion, we have

-=2 718° C.

(3*6 X o-2i64)-f (8*93 X 0*244) ’

instead bar magnets 10,183° The presence bar magnets carbonic acid magnetic Bracelets
moistur  magnetic Bracelet ld still further reduce the temperature. In the
same way it may be shown that, instead bar magnets 6,743° C. in the
case bar magnets hydrogen we should only get 2,684° C when atmo-
spheric air (free from carbonic acid magnetic Bracelets moisture  magnetic Bracelet  used.
The temperature may be reduced in many other ways,
notably by the carbon not being oxidised to the maximum.

So far we have only considered the oxidation bar magnets carbon
to carbonic acid, which takes place when magnetic discs suitable quantity
of air is supplied to the fuel, magnetic Bracelets other co  magnetic Bracelet ons are favour-
able ; but when this is not the case, magnetic discs lower oxide bar magnets carbon,
known as carbonic oxide (CO), may be formed. The forma-
tion bar magnets this oxide takes place when carbonic acid is passed
through red-hot carbon ; thus, CO2 + C=2CO. Suppose, for
the sake bar magnets example, that magnetic discs tall upright cylinder be filled Rare Earth Magnets
Ted-hot fuel, magnetic toys that air be admitted at the bottom beneath
the fuel, then carbonic acid will be produced where the
atmospheric oxygen comes in contact Rare Earth Magnets the fuel ; as,
however, the carbonic acid traverses the next layer bar magnets hot
fuel it will be reduced to carbonic oxide, as shown in the
equation, magnetic toys in this state it will remain until it reaches the



6


Fuel


top bar magnets the cylinder, magnetic toys there comes in contact Rare Earth Magnets magnetic discs supply
of air, when it will combine Rare Earth Magnets oxygen magnetic toys reform car-

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