燃燒學習題答案

原則燃燒熱：在0.1013MPa和指定溫度下，1mol某物質(zhì)完全燃燒時的恒壓反映滅火辦法：1．隔離法2．窒息法3．冷卻法4.克制法CO2H2O性體現(xiàn)在下列三個方面：1）毒害性；2）減光性3）爆炸性p＝1atm、T=273K，1(C6H6)2 2

4.76(CH

O)22.4

4.7692822.41024 4已知木材的構(gòu)成為:C-46%、H-6.0%、O-37.0%、N-2.0%、W-9.0%，問在2 2

4.76(CH

O)22.4

4.764663722.4102 322V0,yq2

V0,H22222.4222

22.4

22.4

22.4

22.4

22.4

22.4

0.794.4522.4

22.4

5.18m3/5kg數(shù)取1.5)2 2

4.76(CH

O)22.4

4.764854022.4102 322V0,yq2

V0,H22222.4222

22.4

22.4

22.4

22.4

22.4

22.4

0.794.2622.4

22.4

4.90m3/原則狀況下

V'yqT'P0

303

17.03因

P'

5kgV'0,airT'P0

303

14.26

5kgCO2、H2O、N2O2

522.4

5(22.4

22.4

)

522.4

1.50.7954.26VO2(1.51)0.2154.26

5

100

3.11100

25.32100

2.2410022.4

4412.75188.842871.33222.41.30kg/已知煤氣成分為:C2H4-48%、H2-37.2%、CH4-26.7%、C3H6-1.3%、CO-4.6%、CO2-10.7%、N2-12.7%、02-2.0P=1atm、T=273K、空氣處在干1m3(1)理論空氣量是多少m3？(2)m3?(3)總?cè)紵a(chǎn)物是多少m3?2 2

4.761CO1

3

S(nm)C

O

24.7614.6137.2(24)48(14)26.7(36)1.32

nCn

102(4.610.724826.731.3)10222 22

HOHS

mC

10237.2448426.76

m 22 2222

102

12.71020.7910.94總?cè)紵a(chǎn)物是1.421.918.77焦爐煤氣的構(gòu)成為:CH4-22.5%、H2-57%、C2H2-3.7%、CO–6.8%1m3 4.761CO1

3

S(nm)C

O

24.7616.8157(14)22.5(22)3.7

3m331.24.11.2atm,25oC3m3V'airT'P0

298

114.76

1m3

nC

HOHS

mC

m

102

(6.82.322.523.7)102(573422.523.7) 4.71020.794.1(1.21)3m335.581.2atm,25oC3m3V'airT'P0

298

116.74

CO2、H2O、N2O2

3(6.82.322.523.7)102 3(573422.523.7)102H 3(4.71021.20.794.1)

100

100

100

0.5210022.4

446.991819.472870.49323.1122.41001.22kg/解：1kg混合質(zhì)量比為56:30:20的甲醇、乙醇和丙醇的混合物中甲醇、乙醇、丙醇的質(zhì)量分別為0.5kg、0.3kg、0.2kg。C甲醇(CH3OH)C、H、O

124

H 124

C乙醇(CH3CH2OH)C、H、O

246

H 246

O

C丙醇(CH3CH2CH2OH)C、H、O

H 368

0.50.3750.30.5220.20.6

0.50.1250.30.130.20.133

0.50.50.30.3480.20.2671kg2 2

4.76(CH

O)22.4

4.7646.412.840.822.4102 321000Kg260538QPQnC

T)1000000

解

252CH3OH(l)3O2(g)2CO2(g)f,298,CO2(g

393.51kJ/f,298,H2O(l

285.83kJ/f,298,CH3OH(l

238.7kJ/f,298,O2(gpij反應QHVH0f.m.i VH0f.m.ipij反應2(393.51)4(285.83)2(238.7)1452.94kJ/C8H8(g)10O2(g)8CO2(g)f,298,CO2(g

393.51kJ/f,298,H2O(l

285.83kJ/f,298,C6H5C2H3(g

147.46kJ/f,298,O2(gpij反應QHVH0f.m.i VH0f.m.ipij反應8(393.51)4(285.83)(147.46)4143.94kJ/已知木材的構(gòu)成為：C-43%、H-7%、O-41%、N-2%、W-7%.求5公斤木材在QH4.18[81C300H26(OS解 18664kJ/QLQH6(9HW)5kJ；低熱值為169085已知煤氣的成分(見計算題124m325℃下燃燒的發(fā)熱c,298,CO(gc,298,H2(g

283