4-1

4-2.1 4-2.2 4-2.3 4-2

Why?

%90(kcal/g)2~33~5.55.5~77~8

H2CH4CO1.2.(CO+H2)C

1.:2. (CO+H2):+3-200-2+2

()()(CnH2n+2)

()

(LPG)()

()1000

-101060107621081-911161-97118100

()()

92 92 8 ()

CH4 + 2 O2CO2+ 2H2OC7H16 + 11O27CO2+8H2O

H2CH4CO COH2

4-3 4-3.1 4-3.2 4-3.3

H2 + 1/2O2H2O

HgO Hg+1/2O2

H () H

H=

H > 0

C(s) +H2O(g) +133 CO(g)+H2(g) C(s) + H2O(g) CO(g)+H2(g) H =133

C(s) + H2O(g)CO(g)+H2(g)

+133KJ

H < 0

H2(g) +1/2O2(g) H2O(l) + 285.8H2(g) +1/2O2(g) H2O(l) H = -285.8- 285.8KJ

2 mol H2 571.6Hn Hn 1 mol H2 285.80.5 mol O2 1 mol H2O(l) 2 mol H2O(l) 1 mol O2

>>

4-4

Zn(s)Zn2+(aq)2e-Cu2+(aq)2e-Cu(s) Zn Cu>e-NO3-NH4+()() NH4 NO3 NH4++NO3-

CPtAu

1.2.1.()2.()3.

((1.5V)()()()

(1.5V)()()()

KOH(aq)NaOH(aq)(1.35V)

(LiI) ()()

2 Li(s) + I2 (s) 2 LiI (s)

(2.0V6)()PbO2()Pb (30%)

+40+2H2SO4()

()

()[NiO(OH)]()( Cd )KOH

1.2 V

() () KOHNaOH

(3.6V)

() ()

()

()()()1.51.51.353.0

()()()2.01.21.23.6

4-5 4-5.1 4-5.2 4-5.3

CH4(g) + 2O2(g) 2H2O(g) + CO2(g) +882.8

()

+ 2 + 9.62108

100

(UPu):

nnnnnnp+p+p+p+++:

E=mc2(kg)(J)13x108 (m/s)

(D2O)()

235 + 1 = 141 + 92 + 3 1 92 + 0 = 56 + 36 + 3 0 1 + 1 = 2 + 02 + 3 = 4 + 1

(=>)

=> ()=> ()

(CH4CO2)

231.4%

-

-

-

-=>