changing a heat capacity equation from one set of units to another is merely a problem in the...
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7/25/2019 Changing a heat capacity equation from one set of units to another is merely a problem in the conversion of units.docx
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Changing a heat capacity equation from one set of units to another is merely
a problem in the conversion of units. Each term in the heat capacity equation
must have the same unit as the left-hand side of the equation. To avoid
confusion in the conversion, you must remember to distinguish between the
temperature symbol that represent temperature and the temperature symbol
that represent temperature dierence even through the same symbol often
is used for each concept. In the conversions below we shall distinguish
between the temperature and the temperature dierence for clarity.
irst, multiply each side of the given equation for Cp by appropriate
conversion factors to convert !"#$g mol% #&$% to #'tu"lb mol #o%. (ultiply the
left-hand side by the factors in the square brac)ets
&n multiply right-hand side by the same set of the conversion factors.
*e+t, substitute the relation between the temperature in $ and the
temperature in .
Into the given equation for Cp where T) appears.
inally, carry out the indicated mathematical operations and consolidate
quantities to get
(engubah persamaan )apasitas panas dari satu set unit yang lain hanyalah
masalah dalam )onversi unit. etiap istilah dalam persamaan )apasitas
panas harus memili)i unit yang sama dengan sisi )iri dari persamaan. ntu)
menghindari )ebingungan dalam )onversi, &nda harus ingat untu)
membeda)an antara simbol suhu yang mewa)ili suhu dan simbol suhu yang
mewa)ili perbedaan suhu bah)an melalui simbol yang sama sering
diguna)an untu) setiap )onsep. /alam )onversi di bawah ini )ita a)anmembeda)an antara suhu dan perbedaan suhu untu) )e0elasan.
1ertama, )ali)an setiap sisi persamaan yang diberi)an untu) Cp oleh fa)tor
)onversi yang tepat untu) meng)onversi ! " #$g mol% #&$% )e #'tu " lb mol
#o%. $ali)an sisi )iri oleh fa)tor-fa)tor dalam )urung )ota)
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7/25/2019 Changing a heat capacity equation from one set of units to another is merely a problem in the conversion of units.docx
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ebuah )ali)an sisi )anan dengan set yang sama fa)tor )onversi.
elan0utnya, mengganti)an hubungan antara suhu di $ dan suhu di .
$e dalam persamaan yang diberi)an untu) Cp mana T) muncul.
&)hirnya, mela)u)an operasi matemati)a yang ditun0u))an dan
meng)onsolidasi)an 0umlah untu) mendapat)an