SOAL Latihan Kimia UTS SMT 1

Selasa, 14 Desember 2010

1.     N2 + 3H2 ® 2NH3 ∆H = -92 kJ
The heat required to decompose 5,1 gram ammonia (Ar H=1, N=14) is….
A.    4,6 kJ
B.    9,2 kJ
C.    13,8 kJ
D.    18,8 kJ
E.     27,6 kJ
2.     The enthalpy change for the formation of CO2 is -395 kJ. The enthalpy change for the combustion of glucose is – 28.20 kJ. The enthalpy change for the combustion of ethanol is – 1.368 kJ. What is ∆H value for the following equation?
C6H12O6 ® 2 C2H5OH + 2CO2
A.    – 876 kJ
B.    + 706 kJ
C.    – 1,057 kJ
D.    + 1,057 kJ
E.     _ 4,583 kJ
3.     Bond energy data:
C=C : 611 kJ/mol
C-H : 414 kJ/mol
H-Cl : 431 kJ/mol
C-Cl : 339 kJ/mol
C-C : 347 kJ/mol
Using the data, the enthalpy change for the following reaction is ….kJ
C2H4 + HCl ® C2H5Cl
A.    + 46 kJ
B.    – 46 kJ
C.    – 58 kJ
D.    – 92 kJ
E.     – 138 kJ
4.     Data:
MO2 + CO ® MO + CO2  ∆H= -20 kJ
M3O4 + CO ® 3 MO + CO2 ∆H= +6 kJ
3M2O3 + CO® 2M3O4 + CO2 ∆H= -12 kJ
The value of ∆H for the reaction 2MO2 + CO ®M2O3 + CO2 is ….kJ
A.    – 40
B.    – 28
C.    – 26
D.    – 18
E.     + 18
5.     According the diagram the value of ∆H3 is ….

A.  ∆H1 + ∆H2-∆H4
B.  ∆H2 + ∆H4-∆H1
C.  ∆H1 - ∆H2 + ∆H4
D.  ∆H1 - ∆H2 - ∆H4
E.   ∆H1 + ∆H4 - ∆H2
6.     A 100 mL of 0.25M HCl solution is mixed with 200 mL of 0.15 M NaOH. The temperature rises from 27oC to 35oC (assume that specific heat is the same of that of pure water 4,2 J/oC. The enthalpy change is ….
7.     The electron configuration of an element 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p3 In periodic system elements located in….
8.     Molecular shape of SF6 is ….
A.    Square planar
B.    Trigonal planar
C.    Trigonal bipyramidal
D.    Tetrahedral
E.     Octahedral

Completely burnt
: dibakar sempurna

Decompose
: menguraikan

Decomposition
: penguraian

Formation
: pembentukan

Ignition
: pembakaran

Transformation
: perubahan

release
: membebaskan

require
: membutuhkan

Square planar
: segiempat planar

Trigonal planar
: segitiga sama sisi

Trigonal bipyramidal
: bipiramida trigonal


kawan,,,, ini dipost cuman buat pegangan kita aja untuk us SMT 2.. siapa tau soalnya keluar...
makasih :D (sumber ; Note dari Miss Cinta)

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