CH 243 1 9 1

STROKE 3.ISlOTHERMAL COMPRESSION

t

I!9YORK

1STROKE 4:ADIABATIC COMPRESSION

(-4

1 9 2 CH 243

w, = - $Pd”

“*nRT

= -“I

1 + dV

w =2 AE

CH 243 1 9 3

-w,-w,=

qh. . . . . . . . . . . . . . . (7.9)

-w,-w,=

qh

-w,-w3=

-W,

1 9 4 CH 243

“2 “4nRT,,ln 7 + nRTcln vI 3= . . . . . . . . . . . . ..(7.1 1)

“2nRT,,ln 7I

:. ..,. . . . . . . . . . . (7.12)

. . . . . . . . . . ..(7.14)

“2 3dsti?wFniwwmniosk~ =

nRThln y - nRTclnI “I

nRThln !2

“I

LTh - Tc=

ThI

5mm.m~ (7.9), (7 .10) bbx (7.15) ~~FGGTTNJ~~J~N~“~~~

CH 243

. . . . . . . . . . . . . . . (7.15)

Th-Tc

Th. . . . . . . . . . . . . . (7.16)

1 9 5

q, = -w,

= (1 mol) (8.3143 J/K.mol) (273.15 K) In (mr)

zr 5.2293 kJ

‘bddW V, (44 .8 h)

-qc = w,

7 - nRTcln 41aV3

= - (1 mol) (8.3143 J/K mol) (172.15 K) In (‘$81~~! )

:. -9, = 3.2957 kJ

1 9 6 CH 243

r 5.2293 kJ - 3.2957 kJ

= 1.9336 i%jW

a.4 0

am miFw&:ld T, ,= 120 + 273.15 = 3 9 3 . 1 5 K

Tc = 30 + 273.15 = 303.15 K

LbfiZ w = - 1 0 0 0 3”

mngm - Wyh =

T, - T c

Th

bbYWi1 - ( - 1 0 0 0 J ) = (393.15 - 303.15) K

qh 393.15 K

:. q, =393.15 (1000 J)

P O

=-(-lo00 J)4368.33 J

= 0.229

-CH 243 1 9 7

1 9 8 CH 243

= f.+ . . . . . . . . . . . . . . . (7.18)1

:. AS = + 2dq5

9 rev= -rev

q T . . . . . . . . . . . . . . . (7.19)

CH 243

2 0 0 CH 243

= nRTln 3“I

(xrmwm (5.13))

VA%ysl = nRln-z

“I. . . . . . . . . . . . . ..(7.22)

" 2= nRlnV + 0I

CH 243 201

mnmJnl9 (7.17) ds = dq Ii‘rev

wio dS = dE+y

LihLVlU dE = nCydT LLat P = nRT/V

:. dS = ncdT + “+!!JVT V . . . . . . . . . . . . . . . . (7.26)

:. A ssvst T2 V2= nCvln~ + nRlnF . . . . . . . . . . . . . . (7.27)I I

2 0 2 CH 243

:. A Ssyst = p JznC I n - . . . . . . . . . . . . . .1

CH 243

H,O (l,- 10°C) A ssyst H,O (s, - 10°C)

P ‘Pas, ns3

c; As2‘0

2 0 4

H,O (1 ,OT) H,O (s, O’C)

CH 243

CH 243 205

323.15 323.15

zz n 1 C,~T/T + n 1 C,dT/T273.15 373.15

zz (0.5 mol)(77 J/K.mol] In;=+( .

= (0.5 mo1)(77 J/K.mo1)(0.1681 + (-0.1439)

:. A Ssyst = 0.932 J/K

2 0 6 CH 243

cm 243 207

my SO ~13dXfl~pr S” ll09bMK S”

(J/K.mol) (J/K.mol) (J/K.mol)

C(c,diamond) 2.44 ,CaO (c) 39.1 H&W 69.94

C(c,graphite) 5.69 CaFz (4 68.87 H@,(1) 92.0

B (4 6.53 Casio3 (c) 82.0 C&(l) 124.50

Be Cc) 9.54 CaS04(c,anhydrite) 106.7 Br2(U 152.3

Ca Cc) 41.63 Ca3(PQ4)2(c) 236.1 HNQ,U) 155.60

h%oEmoaJLiua S” ih~O~~OUj S” ?bIlVWlfJWXlBJ S"

(J/K.mol) (J/K.mol) (J/K.mol)

He (g) 126.06 Hz(g) 130.59 H&W 188.72

Ne k) 144.14 N2(g) 191.49 NH,(g) 192.51

Ar (g) 154.72 CO(g) 197.91 CO&g) 213.64

Kr (g) 163.97 Q&g) 205.03 NO,(g) 240.45

Xe W 169.58 I&) 260.58 SO,(g) 248.52

mxk3m&.4ni6 S”

(J/K.mol)

CH,(g) 186.19

C,H,(g) 200.82

C2H4(g) 229.49

CH,QH(g) 231.6

CH,CHQ(g) 265.1

C,&(g) 269.20

208 CH 243

:-AS =

CH 243 2 0 9

T

n A E[+ “ V + s

n ‘p cnig) dT . . . . . . . . . . . . .

Tb Tb T

..(7.37)

aA + bB - C C + dD

2 1 0 CH 243

7C cS&&c) + d&&D) - aS;g,s.~s(A) + bS;98.1S(B)IC 7

CH 243 2 1 1

212 CH 243

CH 243 2 1 3

l

2 1 4 CH 243